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![Sjoerd Simons](/assets/img/avatar_default.png)
If g_dnl_register fails return an error rather then stubornly continuing onwards. Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* cmd_sdp.c -- sdp command
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*
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* Copyright (C) 2016 Toradex
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* Author: Stefan Agner <stefan.agner@toradex.com>
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*/
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#include <common.h>
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#include <g_dnl.h>
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#include <sdp.h>
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#include <usb.h>
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static int do_sdp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int ret;
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if (argc < 2)
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return CMD_RET_USAGE;
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char *usb_controller = argv[1];
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int controller_index = simple_strtoul(usb_controller, NULL, 0);
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usb_gadget_initialize(controller_index);
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g_dnl_clear_detach();
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ret = g_dnl_register("usb_dnl_sdp");
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if (ret) {
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pr_err("SDP dnl register failed: %d\n", ret);
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goto exit_register;
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}
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ret = sdp_init(controller_index);
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if (ret) {
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pr_err("SDP init failed: %d\n", ret);
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goto exit;
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}
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/* This command typically does not return but jumps to an image */
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sdp_handle(controller_index);
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pr_err("SDP ended\n");
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exit:
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g_dnl_unregister();
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exit_register:
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usb_gadget_release(controller_index);
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return CMD_RET_FAILURE;
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}
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U_BOOT_CMD(sdp, 2, 1, do_sdp,
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"Serial Downloader Protocol",
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"<USB_controller>\n"
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" - serial downloader protocol via <USB_controller>\n"
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);
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