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@ -0,0 +1,737 @@ |
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/*
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* f_sdp.c -- USB HID Serial Download Protocol |
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* |
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* Copyright (C) 2017 Toradex |
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* Author: Stefan Agner <stefan.agner@toradex.com> |
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* |
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* This file implements the Serial Download Protocol (SDP) as specified in |
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* the i.MX 6 Reference Manual. The SDP is a USB HID based protocol and |
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* allows to download images directly to memory. The implementation |
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* works with the imx_loader (imx_usb) USB client software on host side. |
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* |
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* Not all commands are implemented, e.g. WRITE_REGISTER, DCD_WRITE and |
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* SKIP_DCD_HEADER are only stubs. |
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* |
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* Parts of the implementation are based on f_dfu and f_thor. |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <errno.h> |
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#include <common.h> |
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#include <console.h> |
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#include <malloc.h> |
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#include <linux/usb/ch9.h> |
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#include <linux/usb/gadget.h> |
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#include <linux/usb/composite.h> |
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#include <asm/io.h> |
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#include <g_dnl.h> |
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#include <sdp.h> |
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#include <spl.h> |
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#include <image.h> |
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#include <imximage.h> |
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#define HID_REPORT_ID_MASK 0x000000ff |
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/*
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* HID class requests |
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*/ |
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#define HID_REQ_GET_REPORT 0x01 |
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#define HID_REQ_GET_IDLE 0x02 |
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#define HID_REQ_GET_PROTOCOL 0x03 |
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#define HID_REQ_SET_REPORT 0x09 |
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#define HID_REQ_SET_IDLE 0x0A |
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#define HID_REQ_SET_PROTOCOL 0x0B |
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#define HID_USAGE_PAGE_LEN 76 |
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struct hid_report { |
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u8 usage_page[HID_USAGE_PAGE_LEN]; |
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} __packed; |
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#define SDP_READ_REGISTER 0x0101 |
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#define SDP_WRITE_REGISTER 0x0202 |
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#define SDP_WRITE_FILE 0x0404 |
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#define SDP_ERROR_STATUS 0x0505 |
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#define SDP_DCD_WRITE 0x0a0a |
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#define SDP_JUMP_ADDRESS 0x0b0b |
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#define SDP_SKIP_DCD_HEADER 0x0c0c |
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#define SDP_SECURITY_CLOSED 0x12343412 |
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#define SDP_SECURITY_OPEN 0x56787856 |
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#define SDP_WRITE_FILE_COMPLETE 0x88888888 |
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#define SDP_WRITE_REGISTER_COMPLETE 0x128A8A12 |
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#define SDP_SKIP_DCD_HEADER_COMPLETE 0x900DD009 |
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#define SDP_ERROR_IMXHEADER 0x000a0533 |
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#define SDP_COMMAND_LEN 16 |
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struct sdp_command { |
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u16 cmd; |
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u32 addr; |
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u8 format; |
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u32 cnt; |
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u32 data; |
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u8 rsvd; |
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} __packed; |
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enum sdp_state { |
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SDP_STATE_IDLE, |
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SDP_STATE_RX_DCD_DATA, |
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SDP_STATE_RX_FILE_DATA, |
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SDP_STATE_TX_SEC_CONF, |
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SDP_STATE_TX_SEC_CONF_BUSY, |
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SDP_STATE_TX_REGISTER, |
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SDP_STATE_TX_REGISTER_BUSY, |
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SDP_STATE_TX_STATUS, |
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SDP_STATE_TX_STATUS_BUSY, |
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SDP_STATE_JUMP, |
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}; |
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struct f_sdp { |
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struct usb_function usb_function; |
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struct usb_descriptor_header **function; |
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u8 altsetting; |
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enum sdp_state state; |
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enum sdp_state next_state; |
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u32 dnl_address; |
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u32 dnl_bytes_remaining; |
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u32 jmp_address; |
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bool always_send_status; |
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u32 error_status; |
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/* EP0 request */ |
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struct usb_request *req; |
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/* EP1 IN */ |
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struct usb_ep *in_ep; |
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struct usb_request *in_req; |
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bool configuration_done; |
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}; |
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static struct f_sdp *sdp_func; |
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static inline struct f_sdp *func_to_sdp(struct usb_function *f) |
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{ |
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return container_of(f, struct f_sdp, usb_function); |
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} |
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static struct usb_interface_descriptor sdp_intf_runtime = { |
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.bLength = sizeof(sdp_intf_runtime), |
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.bDescriptorType = USB_DT_INTERFACE, |
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.bAlternateSetting = 0, |
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.bNumEndpoints = 1, |
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.bInterfaceClass = USB_CLASS_HID, |
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.bInterfaceSubClass = 0, |
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.bInterfaceProtocol = 0, |
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/* .iInterface = DYNAMIC */ |
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}; |
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/* HID configuration */ |
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static struct usb_class_hid_descriptor sdp_hid_desc = { |
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.bLength = sizeof(sdp_hid_desc), |
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.bDescriptorType = USB_DT_CS_DEVICE, |
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.bcdCDC = __constant_cpu_to_le16(0x0110), |
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.bCountryCode = 0, |
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.bNumDescriptors = 1, |
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.bDescriptorType0 = USB_DT_HID_REPORT, |
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.wDescriptorLength0 = HID_USAGE_PAGE_LEN, |
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}; |
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static struct usb_endpoint_descriptor in_desc = { |
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.bLength = USB_DT_ENDPOINT_SIZE, |
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.bDescriptorType = USB_DT_ENDPOINT, /*USB_DT_CS_ENDPOINT*/ |
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.bEndpointAddress = 1 | USB_DIR_IN, |
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.bmAttributes = USB_ENDPOINT_XFER_INT, |
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.wMaxPacketSize = 64, |
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.bInterval = 1, |
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}; |
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static struct usb_descriptor_header *sdp_runtime_descs[] = { |
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(struct usb_descriptor_header *)&sdp_intf_runtime, |
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(struct usb_descriptor_header *)&sdp_hid_desc, |
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(struct usb_descriptor_header *)&in_desc, |
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NULL, |
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}; |
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/* This is synchronized with what the SoC implementation reports */ |
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static struct hid_report sdp_hid_report = { |
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.usage_page = { |
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0x06, 0x00, 0xff, /* Usage Page */ |
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0x09, 0x01, /* Usage (Pointer?) */ |
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0xa1, 0x01, /* Collection */ |
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0x85, 0x01, /* Report ID */ |
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0x19, 0x01, /* Usage Minimum */ |
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0x29, 0x01, /* Usage Maximum */ |
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0x15, 0x00, /* Local Minimum */ |
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0x26, 0xFF, 0x00, /* Local Maximum? */ |
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0x75, 0x08, /* Report Size */ |
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0x95, 0x10, /* Report Count */ |
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0x91, 0x02, /* Output Data */ |
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0x85, 0x02, /* Report ID */ |
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0x19, 0x01, /* Usage Minimum */ |
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0x29, 0x01, /* Usage Maximum */ |
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0x15, 0x00, /* Local Minimum */ |
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0x26, 0xFF, 0x00, /* Local Maximum? */ |
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0x75, 0x80, /* Report Size 128 */ |
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0x95, 0x40, /* Report Count */ |
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0x91, 0x02, /* Output Data */ |
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0x85, 0x03, /* Report ID */ |
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0x19, 0x01, /* Usage Minimum */ |
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0x29, 0x01, /* Usage Maximum */ |
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0x15, 0x00, /* Local Minimum */ |
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0x26, 0xFF, 0x00, /* Local Maximum? */ |
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0x75, 0x08, /* Report Size 8 */ |
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0x95, 0x04, /* Report Count */ |
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0x81, 0x02, /* Input Data */ |
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0x85, 0x04, /* Report ID */ |
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0x19, 0x01, /* Usage Minimum */ |
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0x29, 0x01, /* Usage Maximum */ |
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0x15, 0x00, /* Local Minimum */ |
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0x26, 0xFF, 0x00, /* Local Maximum? */ |
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0x75, 0x08, /* Report Size 8 */ |
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0x95, 0x40, /* Report Count */ |
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0x81, 0x02, /* Input Data */ |
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0xc0 |
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}, |
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}; |
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static const char sdp_name[] = "Serial Downloader Protocol"; |
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/*
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* static strings, in UTF-8 |
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*/ |
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static struct usb_string strings_sdp_generic[] = { |
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[0].s = sdp_name, |
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{ } /* end of list */ |
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}; |
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static struct usb_gadget_strings stringtab_sdp_generic = { |
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.language = 0x0409, /* en-us */ |
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.strings = strings_sdp_generic, |
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}; |
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static struct usb_gadget_strings *sdp_generic_strings[] = { |
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&stringtab_sdp_generic, |
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NULL, |
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}; |
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static void sdp_rx_command_complete(struct usb_ep *ep, struct usb_request *req) |
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{ |
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struct f_sdp *sdp = req->context; |
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int status = req->status; |
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u8 *data = req->buf; |
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u8 report = data[0]; |
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if (status != 0) { |
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error("Status: %d", status); |
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return; |
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} |
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if (report != 1) { |
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error("Unexpected report %d", report); |
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return; |
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} |
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struct sdp_command *cmd = req->buf + 1; |
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debug("%s: command: %04x, addr: %08x, cnt: %u\n", |
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__func__, be16_to_cpu(cmd->cmd), |
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be32_to_cpu(cmd->addr), be32_to_cpu(cmd->cnt)); |
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switch (be16_to_cpu(cmd->cmd)) { |
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case SDP_READ_REGISTER: |
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sdp->always_send_status = false; |
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sdp->error_status = 0x0; |
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sdp->state = SDP_STATE_TX_SEC_CONF; |
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sdp->dnl_address = be32_to_cpu(cmd->addr); |
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sdp->dnl_bytes_remaining = be32_to_cpu(cmd->cnt); |
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sdp->next_state = SDP_STATE_TX_REGISTER; |
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printf("Reading %d registers at 0x%08x... ", |
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sdp->dnl_bytes_remaining, sdp->dnl_address); |
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break; |
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case SDP_WRITE_FILE: |
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sdp->always_send_status = true; |
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sdp->error_status = SDP_WRITE_FILE_COMPLETE; |
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sdp->state = SDP_STATE_RX_FILE_DATA; |
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sdp->dnl_address = be32_to_cpu(cmd->addr); |
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sdp->dnl_bytes_remaining = be32_to_cpu(cmd->cnt); |
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sdp->next_state = SDP_STATE_IDLE; |
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printf("Downloading file of size %d to 0x%08x... ", |
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sdp->dnl_bytes_remaining, sdp->dnl_address); |
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break; |
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case SDP_ERROR_STATUS: |
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sdp->always_send_status = true; |
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sdp->error_status = 0; |
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sdp->state = SDP_STATE_TX_SEC_CONF; |
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sdp->next_state = SDP_STATE_IDLE; |
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break; |
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case SDP_DCD_WRITE: |
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sdp->always_send_status = true; |
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sdp->error_status = SDP_WRITE_REGISTER_COMPLETE; |
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sdp->state = SDP_STATE_RX_DCD_DATA; |
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sdp->dnl_bytes_remaining = be32_to_cpu(cmd->cnt); |
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sdp->next_state = SDP_STATE_IDLE; |
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break; |
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case SDP_JUMP_ADDRESS: |
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sdp->always_send_status = false; |
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sdp->error_status = 0; |
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sdp->jmp_address = be32_to_cpu(cmd->addr); |
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sdp->state = SDP_STATE_TX_SEC_CONF; |
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sdp->next_state = SDP_STATE_JUMP; |
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break; |
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case SDP_SKIP_DCD_HEADER: |
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sdp->always_send_status = true; |
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sdp->error_status = SDP_SKIP_DCD_HEADER_COMPLETE; |
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/* Ignore command, DCD not supported anyway */ |
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sdp->state = SDP_STATE_TX_SEC_CONF; |
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sdp->next_state = SDP_STATE_IDLE; |
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break; |
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default: |
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error("Unknown command: %04x\n", be16_to_cpu(cmd->cmd)); |
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} |
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} |
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static void sdp_rx_data_complete(struct usb_ep *ep, struct usb_request *req) |
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{ |
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struct f_sdp *sdp = req->context; |
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int status = req->status; |
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u8 *data = req->buf; |
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u8 report = data[0]; |
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int datalen = req->length - 1; |
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if (status != 0) { |
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error("Status: %d", status); |
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return; |
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} |
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if (report != 2) { |
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error("Unexpected report %d", report); |
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return; |
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} |
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if (sdp->dnl_bytes_remaining < datalen) { |
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/*
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* Some USB stacks require to send a complete buffer as |
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* specified in the HID descriptor. This leads to longer |
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* transfers than the file length, no problem for us. |
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*/ |
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sdp->dnl_bytes_remaining = 0; |
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} else { |
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sdp->dnl_bytes_remaining -= datalen; |
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} |
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|
|
if (sdp->state == SDP_STATE_RX_FILE_DATA) { |
|
|
|
|
memcpy((void *)sdp->dnl_address, req->buf + 1, datalen); |
|
|
|
|
sdp->dnl_address += datalen; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (sdp->dnl_bytes_remaining) |
|
|
|
|
return; |
|
|
|
|
|
|
|
|
|
printf("done\n"); |
|
|
|
|
|
|
|
|
|
switch (sdp->state) { |
|
|
|
|
case SDP_STATE_RX_FILE_DATA: |
|
|
|
|
sdp->state = SDP_STATE_TX_SEC_CONF; |
|
|
|
|
break; |
|
|
|
|
case SDP_STATE_RX_DCD_DATA: |
|
|
|
|
sdp->state = SDP_STATE_TX_SEC_CONF; |
|
|
|
|
break; |
|
|
|
|
default: |
|
|
|
|
error("Invalid state: %d", sdp->state); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static void sdp_tx_complete(struct usb_ep *ep, struct usb_request *req) |
|
|
|
|
{ |
|
|
|
|
struct f_sdp *sdp = req->context; |
|
|
|
|
int status = req->status; |
|
|
|
|
|
|
|
|
|
if (status != 0) { |
|
|
|
|
error("Status: %d", status); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
switch (sdp->state) { |
|
|
|
|
case SDP_STATE_TX_SEC_CONF_BUSY: |
|
|
|
|
/* Not all commands require status report */ |
|
|
|
|
if (sdp->always_send_status || sdp->error_status) |
|
|
|
|
sdp->state = SDP_STATE_TX_STATUS; |
|
|
|
|
else |
|
|
|
|
sdp->state = sdp->next_state; |
|
|
|
|
|
|
|
|
|
break; |
|
|
|
|
case SDP_STATE_TX_STATUS_BUSY: |
|
|
|
|
sdp->state = sdp->next_state; |
|
|
|
|
break; |
|
|
|
|
case SDP_STATE_TX_REGISTER_BUSY: |
|
|
|
|
if (sdp->dnl_bytes_remaining) |
|
|
|
|
sdp->state = SDP_STATE_TX_REGISTER; |
|
|
|
|
else |
|
|
|
|
sdp->state = SDP_STATE_IDLE; |
|
|
|
|
break; |
|
|
|
|
default: |
|
|
|
|
error("Wrong State: %d", sdp->state); |
|
|
|
|
sdp->state = SDP_STATE_IDLE; |
|
|
|
|
break; |
|
|
|
|
} |
|
|
|
|
debug("%s complete --> %d, %d/%d\n", ep->name, |
|
|
|
|
status, req->actual, req->length); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int sdp_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) |
|
|
|
|
{ |
|
|
|
|
struct usb_gadget *gadget = f->config->cdev->gadget; |
|
|
|
|
struct usb_request *req = f->config->cdev->req; |
|
|
|
|
struct f_sdp *sdp = f->config->cdev->req->context; |
|
|
|
|
u16 len = le16_to_cpu(ctrl->wLength); |
|
|
|
|
u16 w_value = le16_to_cpu(ctrl->wValue); |
|
|
|
|
int value = 0; |
|
|
|
|
u8 req_type = ctrl->bRequestType & USB_TYPE_MASK; |
|
|
|
|
|
|
|
|
|
debug("w_value: 0x%04x len: 0x%04x\n", w_value, len); |
|
|
|
|
debug("req_type: 0x%02x ctrl->bRequest: 0x%02x sdp->state: %d\n", |
|
|
|
|
req_type, ctrl->bRequest, sdp->state); |
|
|
|
|
|
|
|
|
|
if (req_type == USB_TYPE_STANDARD) { |
|
|
|
|
if (ctrl->bRequest == USB_REQ_GET_DESCRIPTOR) { |
|
|
|
|
/* Send HID report descriptor */ |
|
|
|
|
value = min(len, (u16) sizeof(sdp_hid_report)); |
|
|
|
|
memcpy(req->buf, &sdp_hid_report, value); |
|
|
|
|
sdp->configuration_done = true; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (req_type == USB_TYPE_CLASS) { |
|
|
|
|
int report = w_value & HID_REPORT_ID_MASK; |
|
|
|
|
|
|
|
|
|
/* HID (SDP) request */ |
|
|
|
|
switch (ctrl->bRequest) { |
|
|
|
|
case HID_REQ_SET_REPORT: |
|
|
|
|
switch (report) { |
|
|
|
|
case 1: |
|
|
|
|
value = SDP_COMMAND_LEN + 1; |
|
|
|
|
req->complete = sdp_rx_command_complete; |
|
|
|
|
break; |
|
|
|
|
case 2: |
|
|
|
|
value = len; |
|
|
|
|
req->complete = sdp_rx_data_complete; |
|
|
|
|
break; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (value >= 0) { |
|
|
|
|
req->length = value; |
|
|
|
|
req->zero = value < len; |
|
|
|
|
value = usb_ep_queue(gadget->ep0, req, 0); |
|
|
|
|
if (value < 0) { |
|
|
|
|
debug("ep_queue --> %d\n", value); |
|
|
|
|
req->status = 0; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return value; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int sdp_bind(struct usb_configuration *c, struct usb_function *f) |
|
|
|
|
{ |
|
|
|
|
struct usb_gadget *gadget = c->cdev->gadget; |
|
|
|
|
struct usb_composite_dev *cdev = c->cdev; |
|
|
|
|
struct f_sdp *sdp = func_to_sdp(f); |
|
|
|
|
int rv = 0, id; |
|
|
|
|
|
|
|
|
|
id = usb_interface_id(c, f); |
|
|
|
|
if (id < 0) |
|
|
|
|
return id; |
|
|
|
|
sdp_intf_runtime.bInterfaceNumber = id; |
|
|
|
|
|
|
|
|
|
struct usb_ep *ep; |
|
|
|
|
|
|
|
|
|
/* allocate instance-specific endpoints */ |
|
|
|
|
ep = usb_ep_autoconfig(gadget, &in_desc); |
|
|
|
|
if (!ep) { |
|
|
|
|
rv = -ENODEV; |
|
|
|
|
goto error; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
sdp->in_ep = ep; /* Store IN EP for enabling @ setup */ |
|
|
|
|
|
|
|
|
|
cdev->req->context = sdp; |
|
|
|
|
|
|
|
|
|
error: |
|
|
|
|
return rv; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static void sdp_unbind(struct usb_configuration *c, struct usb_function *f) |
|
|
|
|
{ |
|
|
|
|
free(sdp_func); |
|
|
|
|
sdp_func = NULL; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static struct usb_request *alloc_ep_req(struct usb_ep *ep, unsigned length) |
|
|
|
|
{ |
|
|
|
|
struct usb_request *req; |
|
|
|
|
|
|
|
|
|
req = usb_ep_alloc_request(ep, 0); |
|
|
|
|
if (!req) |
|
|
|
|
return req; |
|
|
|
|
|
|
|
|
|
req->length = length; |
|
|
|
|
req->buf = memalign(CONFIG_SYS_CACHELINE_SIZE, length); |
|
|
|
|
if (!req->buf) { |
|
|
|
|
usb_ep_free_request(ep, req); |
|
|
|
|
req = NULL; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return req; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static struct usb_request *sdp_start_ep(struct usb_ep *ep) |
|
|
|
|
{ |
|
|
|
|
struct usb_request *req; |
|
|
|
|
|
|
|
|
|
req = alloc_ep_req(ep, 64); |
|
|
|
|
debug("%s: ep:%p req:%p\n", __func__, ep, req); |
|
|
|
|
|
|
|
|
|
if (!req) |
|
|
|
|
return NULL; |
|
|
|
|
|
|
|
|
|
memset(req->buf, 0, req->length); |
|
|
|
|
req->complete = sdp_tx_complete; |
|
|
|
|
|
|
|
|
|
return req; |
|
|
|
|
} |
|
|
|
|
static int sdp_set_alt(struct usb_function *f, unsigned intf, unsigned alt) |
|
|
|
|
{ |
|
|
|
|
struct f_sdp *sdp = func_to_sdp(f); |
|
|
|
|
struct usb_composite_dev *cdev = f->config->cdev; |
|
|
|
|
int result; |
|
|
|
|
|
|
|
|
|
debug("%s: intf: %d alt: %d\n", __func__, intf, alt); |
|
|
|
|
|
|
|
|
|
result = usb_ep_enable(sdp->in_ep, &in_desc); |
|
|
|
|
if (result) |
|
|
|
|
return result; |
|
|
|
|
sdp->in_req = sdp_start_ep(sdp->in_ep); |
|
|
|
|
sdp->in_req->context = sdp; |
|
|
|
|
|
|
|
|
|
sdp->in_ep->driver_data = cdev; /* claim */ |
|
|
|
|
|
|
|
|
|
sdp->altsetting = alt; |
|
|
|
|
sdp->state = SDP_STATE_IDLE; |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int sdp_get_alt(struct usb_function *f, unsigned intf) |
|
|
|
|
{ |
|
|
|
|
struct f_sdp *sdp = func_to_sdp(f); |
|
|
|
|
|
|
|
|
|
return sdp->altsetting; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static void sdp_disable(struct usb_function *f) |
|
|
|
|
{ |
|
|
|
|
struct f_sdp *sdp = func_to_sdp(f); |
|
|
|
|
|
|
|
|
|
usb_ep_disable(sdp->in_ep); |
|
|
|
|
|
|
|
|
|
if (sdp->in_req) { |
|
|
|
|
free(sdp->in_req); |
|
|
|
|
sdp->in_req = NULL; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static int sdp_bind_config(struct usb_configuration *c) |
|
|
|
|
{ |
|
|
|
|
int status; |
|
|
|
|
|
|
|
|
|
if (!sdp_func) { |
|
|
|
|
sdp_func = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*sdp_func)); |
|
|
|
|
if (!sdp_func) |
|
|
|
|
return -ENOMEM; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
memset(sdp_func, 0, sizeof(*sdp_func)); |
|
|
|
|
|
|
|
|
|
sdp_func->usb_function.name = "sdp"; |
|
|
|
|
sdp_func->usb_function.hs_descriptors = sdp_runtime_descs; |
|
|
|
|
sdp_func->usb_function.descriptors = sdp_runtime_descs; |
|
|
|
|
sdp_func->usb_function.bind = sdp_bind; |
|
|
|
|
sdp_func->usb_function.unbind = sdp_unbind; |
|
|
|
|
sdp_func->usb_function.set_alt = sdp_set_alt; |
|
|
|
|
sdp_func->usb_function.get_alt = sdp_get_alt; |
|
|
|
|
sdp_func->usb_function.disable = sdp_disable; |
|
|
|
|
sdp_func->usb_function.strings = sdp_generic_strings; |
|
|
|
|
sdp_func->usb_function.setup = sdp_setup; |
|
|
|
|
|
|
|
|
|
status = usb_add_function(c, &sdp_func->usb_function); |
|
|
|
|
|
|
|
|
|
return status; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
int sdp_init(int controller_index) |
|
|
|
|
{ |
|
|
|
|
printf("SDP: initialize...\n"); |
|
|
|
|
while (!sdp_func->configuration_done) { |
|
|
|
|
if (ctrlc()) { |
|
|
|
|
puts("\rCTRL+C - Operation aborted.\n"); |
|
|
|
|
return 1; |
|
|
|
|
} |
|
|
|
|
usb_gadget_handle_interrupts(controller_index); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static u32 sdp_jump_imxheader(void *address) |
|
|
|
|
{ |
|
|
|
|
flash_header_v2_t *headerv2 = address; |
|
|
|
|
ulong (*entry)(void); |
|
|
|
|
|
|
|
|
|
if (headerv2->header.tag != IVT_HEADER_TAG) { |
|
|
|
|
printf("Header Tag is not an IMX image\n"); |
|
|
|
|
return SDP_ERROR_IMXHEADER; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
printf("Jumping to 0x%08x\n", headerv2->entry); |
|
|
|
|
entry = (void *)headerv2->entry; |
|
|
|
|
entry(); |
|
|
|
|
|
|
|
|
|
/* The image probably never returns hence we won't reach that point */ |
|
|
|
|
return 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
static void sdp_handle_in_ep(void) |
|
|
|
|
{ |
|
|
|
|
u8 *data = sdp_func->in_req->buf; |
|
|
|
|
u32 status; |
|
|
|
|
int datalen; |
|
|
|
|
|
|
|
|
|
switch (sdp_func->state) { |
|
|
|
|
case SDP_STATE_TX_SEC_CONF: |
|
|
|
|
debug("Report 3: HAB security\n"); |
|
|
|
|
data[0] = 3; |
|
|
|
|
|
|
|
|
|
status = SDP_SECURITY_OPEN; |
|
|
|
|
memcpy(&data[1], &status, 4); |
|
|
|
|
sdp_func->in_req->length = 5; |
|
|
|
|
usb_ep_queue(sdp_func->in_ep, sdp_func->in_req, 0); |
|
|
|
|
sdp_func->state = SDP_STATE_TX_SEC_CONF_BUSY; |
|
|
|
|
break; |
|
|
|
|
|
|
|
|
|
case SDP_STATE_TX_STATUS: |
|
|
|
|
debug("Report 4: Status\n"); |
|
|
|
|
data[0] = 4; |
|
|
|
|
|
|
|
|
|
memcpy(&data[1], &sdp_func->error_status, 4); |
|
|
|
|
sdp_func->in_req->length = 65; |
|
|
|
|
usb_ep_queue(sdp_func->in_ep, sdp_func->in_req, 0); |
|
|
|
|
sdp_func->state = SDP_STATE_TX_STATUS_BUSY; |
|
|
|
|
break; |
|
|
|
|
case SDP_STATE_TX_REGISTER: |
|
|
|
|
debug("Report 4: Register Values\n"); |
|
|
|
|
data[0] = 4; |
|
|
|
|
|
|
|
|
|
datalen = sdp_func->dnl_bytes_remaining; |
|
|
|
|
|
|
|
|
|
if (datalen > 64) |
|
|
|
|
datalen = 64; |
|
|
|
|
|
|
|
|
|
memcpy(&data[1], (void *)sdp_func->dnl_address, datalen); |
|
|
|
|
sdp_func->in_req->length = 65; |
|
|
|
|
|
|
|
|
|
sdp_func->dnl_bytes_remaining -= datalen; |
|
|
|
|
sdp_func->dnl_address += datalen; |
|
|
|
|
|
|
|
|
|
usb_ep_queue(sdp_func->in_ep, sdp_func->in_req, 0); |
|
|
|
|
sdp_func->state = SDP_STATE_TX_REGISTER_BUSY; |
|
|
|
|
break; |
|
|
|
|
case SDP_STATE_JUMP: |
|
|
|
|
printf("Jumping to header at 0x%08x\n", sdp_func->jmp_address); |
|
|
|
|
status = sdp_jump_imxheader((void *)sdp_func->jmp_address); |
|
|
|
|
|
|
|
|
|
/* If imx header fails, try some U-Boot specific headers */ |
|
|
|
|
if (status) { |
|
|
|
|
#ifdef CONFIG_SPL_BUILD |
|
|
|
|
/* In SPL, allow jumps to U-Boot images */ |
|
|
|
|
struct spl_image_info spl_image = {}; |
|
|
|
|
spl_parse_image_header(&spl_image, |
|
|
|
|
(struct image_header *)sdp_func->jmp_address); |
|
|
|
|
jump_to_image_no_args(&spl_image); |
|
|
|
|
#else |
|
|
|
|
/* In U-Boot, allow jumps to scripts */ |
|
|
|
|
source(sdp_func->jmp_address, "script@1"); |
|
|
|
|
#endif |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
sdp_func->next_state = SDP_STATE_IDLE; |
|
|
|
|
sdp_func->error_status = status; |
|
|
|
|
|
|
|
|
|
/* Only send Report 4 if there was an error */ |
|
|
|
|
if (status) |
|
|
|
|
sdp_func->state = SDP_STATE_TX_STATUS; |
|
|
|
|
else |
|
|
|
|
sdp_func->state = SDP_STATE_IDLE; |
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break; |
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default: |
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break; |
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}; |
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} |
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void sdp_handle(int controller_index) |
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{ |
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printf("SDP: handle requests...\n"); |
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while (1) { |
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if (ctrlc()) { |
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puts("\rCTRL+C - Operation aborted.\n"); |
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return; |
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} |
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usb_gadget_handle_interrupts(controller_index); |
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sdp_handle_in_ep(); |
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} |
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} |
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int sdp_add(struct usb_configuration *c) |
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{ |
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int id; |
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id = usb_string_id(c->cdev); |
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if (id < 0) |
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return id; |
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strings_sdp_generic[0].id = id; |
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sdp_intf_runtime.iInterface = id; |
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debug("%s: cdev: %p gadget: %p gadget->ep0: %p\n", __func__, |
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c->cdev, c->cdev->gadget, c->cdev->gadget->ep0); |
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return sdp_bind_config(c); |
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} |
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DECLARE_GADGET_BIND_CALLBACK(usb_dnl_sdp, sdp_add); |
Tom Rini
7 years ago