mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 19:10:13 +00:00
7f23470885
The spl_board_prepare_for_boot() should be called before jump_to_image_no_args() to perform board-specific deinitialization before jumping to the next stage. This board-specific deinitialization can be very much anything, e.g. disable dcache in case it was enabled, or such. Add the missing spl_board_prepare_for_boot() call into f_sdp . Signed-off-by: Marek Vasut <marex@denx.de>
960 lines
23 KiB
C
960 lines
23 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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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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#include <errno.h>
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#include <common.h>
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#include <console.h>
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#include <env.h>
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#include <log.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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#include <watchdog.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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#define SDP_HID_PACKET_SIZE_EP1 1024
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#define SDP_EXIT 1
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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_CMD,
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SDP_STATE_RX_DCD_DATA,
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SDP_STATE_RX_FILE_DATA,
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SDP_STATE_RX_FILE_DATA_BUSY,
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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;
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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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/* EP1 OUT */
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struct usb_ep *out_ep;
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struct usb_request *out_req;
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bool configuration_done;
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bool ep_int_enable;
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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 = 2,
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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_endpoint_descriptor out_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_OUT,
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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_endpoint_descriptor in_hs_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 = 512,
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.bInterval = 3,
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};
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static struct usb_endpoint_descriptor out_hs_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_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_INT,
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.wMaxPacketSize = SDP_HID_PACKET_SIZE_EP1,
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.bInterval = 3,
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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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(struct usb_descriptor_header *)&out_desc,
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NULL,
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};
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static struct usb_descriptor_header *sdp_runtime_hs_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_hs_desc,
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(struct usb_descriptor_header *)&out_hs_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 inline void *sdp_ptr(u32 val)
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{
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return (void *)(uintptr_t)val;
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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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pr_err("Status: %d\n", status);
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return;
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}
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if (report != 1) {
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pr_err("Unexpected report %d\n", 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 = cmd->addr ? be32_to_cpu(cmd->addr) : CONFIG_SDP_LOADADDR;
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sdp->dnl_bytes_remaining = be32_to_cpu(cmd->cnt);
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sdp->dnl_bytes = sdp->dnl_bytes_remaining;
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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 = cmd->addr ? be32_to_cpu(cmd->addr) : CONFIG_SDP_LOADADDR;
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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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pr_err("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->actual - 1;
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if (status != 0) {
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pr_err("Status: %d\n", status);
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return;
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}
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if (report != 2) {
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pr_err("Unexpected report %d\n", 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_BUSY) {
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memcpy(sdp_ptr(sdp->dnl_address), req->buf + 1, datalen);
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sdp->dnl_address += datalen;
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}
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if (sdp->dnl_bytes_remaining) {
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sdp->state = SDP_STATE_RX_FILE_DATA;
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return;
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}
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#ifndef CONFIG_SPL_BUILD
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env_set_hex("filesize", sdp->dnl_bytes);
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#endif
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printf("done\n");
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switch (sdp->state) {
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case SDP_STATE_RX_FILE_DATA_BUSY:
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sdp->state = SDP_STATE_TX_SEC_CONF;
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break;
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case SDP_STATE_RX_DCD_DATA:
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sdp->state = SDP_STATE_TX_SEC_CONF;
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break;
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default:
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pr_err("Invalid state: %d\n", sdp->state);
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}
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}
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static void sdp_tx_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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if (status != 0) {
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pr_err("Status: %d\n", status);
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return;
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}
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switch (sdp->state) {
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case SDP_STATE_TX_SEC_CONF_BUSY:
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/* Not all commands require status report */
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if (sdp->always_send_status || sdp->error_status)
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sdp->state = SDP_STATE_TX_STATUS;
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else
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sdp->state = sdp->next_state;
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break;
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case SDP_STATE_TX_STATUS_BUSY:
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sdp->state = sdp->next_state;
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break;
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case SDP_STATE_TX_REGISTER_BUSY:
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if (sdp->dnl_bytes_remaining)
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sdp->state = SDP_STATE_TX_REGISTER;
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else
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sdp->state = SDP_STATE_IDLE;
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break;
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default:
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pr_err("Wrong State: %d\n", sdp->state);
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sdp->state = SDP_STATE_IDLE;
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break;
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}
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debug("%s complete --> %d, %d/%d\n", ep->name,
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status, req->actual, req->length);
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}
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static int sdp_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl)
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{
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struct usb_gadget *gadget = f->config->cdev->gadget;
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struct usb_request *req = f->config->cdev->req;
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struct f_sdp *sdp = f->config->cdev->req->context;
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u16 len = le16_to_cpu(ctrl->wLength);
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u16 w_value = le16_to_cpu(ctrl->wValue);
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int value = 0;
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u8 req_type = ctrl->bRequestType & USB_TYPE_MASK;
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debug("w_value: 0x%04x len: 0x%04x\n", w_value, len);
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debug("req_type: 0x%02x ctrl->bRequest: 0x%02x sdp->state: %d\n",
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req_type, ctrl->bRequest, sdp->state);
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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;
|
|
sdp_func->ep_int_enable = false;
|
|
break;
|
|
case 2:
|
|
value = len;
|
|
req->complete = sdp_rx_data_complete;
|
|
sdp_func->state = SDP_STATE_RX_FILE_DATA_BUSY;
|
|
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_in, *ep_out;
|
|
|
|
/* allocate instance-specific endpoints */
|
|
ep_in = usb_ep_autoconfig(gadget, &in_desc);
|
|
if (!ep_in) {
|
|
rv = -ENODEV;
|
|
goto error;
|
|
}
|
|
|
|
ep_out = usb_ep_autoconfig(gadget, &out_desc);
|
|
if (!ep_out) {
|
|
rv = -ENODEV;
|
|
goto error;
|
|
}
|
|
|
|
if (gadget_is_dualspeed(gadget)) {
|
|
/* Assume endpoint addresses are the same for both speeds */
|
|
in_hs_desc.bEndpointAddress = in_desc.bEndpointAddress;
|
|
out_hs_desc.bEndpointAddress = out_desc.bEndpointAddress;
|
|
}
|
|
|
|
sdp->in_ep = ep_in; /* Store IN EP for enabling @ setup */
|
|
sdp->out_ep = ep_out;
|
|
|
|
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, bool in)
|
|
{
|
|
struct usb_request *req;
|
|
|
|
if (in)
|
|
req = alloc_ep_req(ep, 65);
|
|
else
|
|
req = alloc_ep_req(ep, 2048);
|
|
/*
|
|
* OUT endpoint request length should be an integral multiple of
|
|
* maxpacket size 1024, else we break on certain controllers like
|
|
* DWC3 that expect bulk OUT requests to be divisible by maxpacket size.
|
|
*/
|
|
debug("%s: ep:%p req:%p\n", __func__, ep, req);
|
|
|
|
if (!req)
|
|
return NULL;
|
|
|
|
memset(req->buf, 0, req->length);
|
|
if (in)
|
|
req->complete = sdp_tx_complete;
|
|
else
|
|
req->complete = sdp_rx_command_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;
|
|
struct usb_gadget *gadget = cdev->gadget;
|
|
int result;
|
|
|
|
debug("%s: intf: %d alt: %d\n", __func__, intf, alt);
|
|
|
|
if (gadget_is_dualspeed(gadget) && gadget->speed == USB_SPEED_HIGH) {
|
|
result = usb_ep_enable(sdp->in_ep, &in_hs_desc);
|
|
result |= usb_ep_enable(sdp->out_ep, &out_hs_desc);
|
|
} else {
|
|
result = usb_ep_enable(sdp->in_ep, &in_desc);
|
|
result |= usb_ep_enable(sdp->out_ep, &out_desc);
|
|
}
|
|
if (result)
|
|
return result;
|
|
|
|
sdp->in_req = sdp_start_ep(sdp->in_ep, true);
|
|
sdp->in_req->context = sdp;
|
|
sdp->out_req = sdp_start_ep(sdp->out_ep, false);
|
|
sdp->out_req->context = sdp;
|
|
|
|
sdp->in_ep->driver_data = cdev; /* claim */
|
|
sdp->out_ep->driver_data = cdev; /* claim */
|
|
|
|
sdp->altsetting = alt;
|
|
sdp->state = SDP_STATE_IDLE;
|
|
sdp->ep_int_enable = true;
|
|
|
|
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);
|
|
usb_ep_disable(sdp->out_ep);
|
|
|
|
if (sdp->in_req) {
|
|
free(sdp->in_req->buf);
|
|
usb_ep_free_request(sdp->in_ep, sdp->in_req);
|
|
sdp->in_req = NULL;
|
|
}
|
|
if (sdp->out_req) {
|
|
free(sdp->out_req->buf);
|
|
usb_ep_free_request(sdp->out_ep, sdp->out_req);
|
|
sdp->out_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_hs_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;
|
|
}
|
|
|
|
schedule();
|
|
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 = sdp_ptr(headerv2->entry);
|
|
entry();
|
|
|
|
/* The image probably never returns hence we won't reach that point */
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
static ulong sdp_load_read(struct spl_load_info *load, ulong sector,
|
|
ulong count, void *buf)
|
|
{
|
|
debug("%s: sector %lx, count %lx, buf %lx\n",
|
|
__func__, sector, count, (ulong)buf);
|
|
memcpy(buf, (void *)(load->dev + sector), count);
|
|
return count;
|
|
}
|
|
|
|
static ulong search_fit_header(ulong p, int size)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < size; i += 4) {
|
|
if (genimg_get_format((const void *)(p + i)) == IMAGE_FORMAT_FIT)
|
|
return p + i;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ulong search_container_header(ulong p, int size)
|
|
{
|
|
int i;
|
|
u8 *hdr;
|
|
|
|
for (i = 0; i < size; i += 4) {
|
|
hdr = (u8 *)(p + i);
|
|
if (*(hdr + 3) == 0x87 && *hdr == 0)
|
|
if (*(hdr + 1) != 0 || *(hdr + 2) != 0)
|
|
return p + i;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int sdp_handle_in_ep(struct spl_image_info *spl_image,
|
|
struct spl_boot_device *bootdev)
|
|
{
|
|
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], sdp_ptr(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(sdp_ptr(sdp_func->jmp_address));
|
|
|
|
/* If imx header fails, try some U-Boot specific headers */
|
|
if (status) {
|
|
#ifdef CONFIG_SPL_BUILD
|
|
if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER))
|
|
sdp_func->jmp_address = (u32)search_container_header((ulong)sdp_func->jmp_address, sdp_func->dnl_bytes);
|
|
else if (IS_ENABLED(CONFIG_SPL_LOAD_FIT))
|
|
sdp_func->jmp_address = (u32)search_fit_header((ulong)sdp_func->jmp_address, sdp_func->dnl_bytes);
|
|
if (sdp_func->jmp_address == 0)
|
|
panic("Error in search header, failed to jump\n");
|
|
|
|
printf("Found header at 0x%08x\n", sdp_func->jmp_address);
|
|
|
|
struct legacy_img_hdr *header =
|
|
sdp_ptr(sdp_func->jmp_address);
|
|
#ifdef CONFIG_SPL_LOAD_FIT
|
|
if (image_get_magic(header) == FDT_MAGIC) {
|
|
struct spl_load_info load;
|
|
|
|
debug("Found FIT\n");
|
|
load.dev = header;
|
|
load.bl_len = 1;
|
|
load.read = sdp_load_read;
|
|
spl_load_simple_fit(spl_image, &load, 0,
|
|
header);
|
|
|
|
return SDP_EXIT;
|
|
}
|
|
#endif
|
|
if (IS_ENABLED(CONFIG_SPL_LOAD_IMX_CONTAINER)) {
|
|
struct spl_load_info load;
|
|
|
|
load.dev = header;
|
|
load.bl_len = 1;
|
|
load.read = sdp_load_read;
|
|
spl_load_imx_container(spl_image, &load, 0);
|
|
return SDP_EXIT;
|
|
}
|
|
|
|
/* In SPL, allow jumps to U-Boot images */
|
|
struct spl_image_info spl_image = {};
|
|
struct spl_boot_device bootdev = {};
|
|
spl_parse_image_header(&spl_image, &bootdev, header);
|
|
spl_board_prepare_for_boot();
|
|
jump_to_image_no_args(&spl_image);
|
|
#else
|
|
/* In U-Boot, allow jumps to scripts */
|
|
cmd_source_script(sdp_func->jmp_address, NULL, NULL);
|
|
#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;
|
|
break;
|
|
default:
|
|
break;
|
|
};
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void sdp_handle_out_ep(void)
|
|
{
|
|
int rc;
|
|
|
|
if (sdp_func->state == SDP_STATE_IDLE) {
|
|
sdp_func->out_req->complete = sdp_rx_command_complete;
|
|
rc = usb_ep_queue(sdp_func->out_ep, sdp_func->out_req, 0);
|
|
if (rc)
|
|
printf("error in submission: %s\n",
|
|
sdp_func->out_ep->name);
|
|
sdp_func->state = SDP_STATE_RX_CMD;
|
|
} else if (sdp_func->state == SDP_STATE_RX_FILE_DATA) {
|
|
sdp_func->out_req->complete = sdp_rx_data_complete;
|
|
rc = usb_ep_queue(sdp_func->out_ep, sdp_func->out_req, 0);
|
|
if (rc)
|
|
printf("error in submission: %s\n",
|
|
sdp_func->out_ep->name);
|
|
sdp_func->state = SDP_STATE_RX_FILE_DATA_BUSY;
|
|
}
|
|
}
|
|
|
|
#ifndef CONFIG_SPL_BUILD
|
|
int sdp_handle(int controller_index)
|
|
#else
|
|
int spl_sdp_handle(int controller_index, struct spl_image_info *spl_image,
|
|
struct spl_boot_device *bootdev)
|
|
#endif
|
|
{
|
|
int flag = 0;
|
|
printf("SDP: handle requests...\n");
|
|
while (1) {
|
|
if (ctrlc()) {
|
|
puts("\rCTRL+C - Operation aborted.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (flag == SDP_EXIT)
|
|
return 0;
|
|
|
|
schedule();
|
|
usb_gadget_handle_interrupts(controller_index);
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
flag = sdp_handle_in_ep(spl_image, bootdev);
|
|
#else
|
|
flag = sdp_handle_in_ep(NULL, NULL);
|
|
#endif
|
|
if (sdp_func->ep_int_enable)
|
|
sdp_handle_out_ep();
|
|
}
|
|
}
|
|
|
|
int sdp_add(struct usb_configuration *c)
|
|
{
|
|
int id;
|
|
|
|
id = usb_string_id(c->cdev);
|
|
if (id < 0)
|
|
return id;
|
|
strings_sdp_generic[0].id = id;
|
|
sdp_intf_runtime.iInterface = id;
|
|
|
|
debug("%s: cdev: %p gadget: %p gadget->ep0: %p\n", __func__,
|
|
c->cdev, c->cdev->gadget, c->cdev->gadget->ep0);
|
|
|
|
return sdp_bind_config(c);
|
|
}
|
|
|
|
DECLARE_GADGET_BIND_CALLBACK(usb_dnl_sdp, sdp_add);
|