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https://github.com/brain-hackers/u-boot-brain
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![Simon Glass](/assets/img/avatar_default.png)
The console includes a global variable and several functions that are only used by a small subset of U-Boot files. Before adding more functions, move the definitions into their own header file. Signed-off-by: Simon Glass <sjg@chromium.org>
167 lines
3.6 KiB
C
167 lines
3.6 KiB
C
/*
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* Copyright (C) 2011 Samsung Electronics
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* Lukasz Majewski <l.majewski@samsung.com>
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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 <command.h>
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#include <console.h>
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#include <g_dnl.h>
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#include <part.h>
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#include <usb.h>
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#include <usb_mass_storage.h>
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static int ums_read_sector(struct ums *ums_dev,
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ulong start, lbaint_t blkcnt, void *buf)
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{
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block_dev_desc_t *block_dev = ums_dev->block_dev;
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lbaint_t blkstart = start + ums_dev->start_sector;
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int dev_num = block_dev->dev;
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return block_dev->block_read(dev_num, blkstart, blkcnt, buf);
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}
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static int ums_write_sector(struct ums *ums_dev,
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ulong start, lbaint_t blkcnt, const void *buf)
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{
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block_dev_desc_t *block_dev = ums_dev->block_dev;
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lbaint_t blkstart = start + ums_dev->start_sector;
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int dev_num = block_dev->dev;
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return block_dev->block_write(dev_num, blkstart, blkcnt, buf);
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}
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static struct ums ums_dev = {
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.read_sector = ums_read_sector,
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.write_sector = ums_write_sector,
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.name = "UMS disk",
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};
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struct ums *ums_init(const char *devtype, const char *devnum)
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{
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block_dev_desc_t *block_dev;
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int ret;
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ret = get_device(devtype, devnum, &block_dev);
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if (ret < 0)
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return NULL;
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/* f_mass_storage.c assumes SECTOR_SIZE sectors */
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if (block_dev->blksz != SECTOR_SIZE)
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return NULL;
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ums_dev.block_dev = block_dev;
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ums_dev.start_sector = 0;
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ums_dev.num_sectors = block_dev->lba;
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printf("UMS: disk start sector: %#x, count: %#x\n",
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ums_dev.start_sector, ums_dev.num_sectors);
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return &ums_dev;
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}
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int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
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int argc, char * const argv[])
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{
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const char *usb_controller;
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const char *devtype;
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const char *devnum;
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struct ums *ums;
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unsigned int controller_index;
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int rc;
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int cable_ready_timeout __maybe_unused;
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if (argc < 3)
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return CMD_RET_USAGE;
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usb_controller = argv[1];
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if (argc >= 4) {
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devtype = argv[2];
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devnum = argv[3];
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} else {
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devtype = "mmc";
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devnum = argv[2];
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}
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ums = ums_init(devtype, devnum);
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if (!ums)
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return CMD_RET_FAILURE;
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controller_index = (unsigned int)(simple_strtoul(
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usb_controller, NULL, 0));
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if (board_usb_init(controller_index, USB_INIT_DEVICE)) {
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error("Couldn't init USB controller.");
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return CMD_RET_FAILURE;
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}
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rc = fsg_init(ums);
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if (rc) {
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error("fsg_init failed");
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return CMD_RET_FAILURE;
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}
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rc = g_dnl_register("usb_dnl_ums");
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if (rc) {
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error("g_dnl_register failed");
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return CMD_RET_FAILURE;
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}
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/* Timeout unit: seconds */
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cable_ready_timeout = UMS_CABLE_READY_TIMEOUT;
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if (!g_dnl_board_usb_cable_connected()) {
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/*
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* Won't execute if we don't know whether the cable is
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* connected.
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*/
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puts("Please connect USB cable.\n");
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while (!g_dnl_board_usb_cable_connected()) {
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if (ctrlc()) {
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puts("\rCTRL+C - Operation aborted.\n");
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goto exit;
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}
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if (!cable_ready_timeout) {
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puts("\rUSB cable not detected.\n" \
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"Command exit.\n");
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goto exit;
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}
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printf("\rAuto exit in: %.2d s.", cable_ready_timeout);
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mdelay(1000);
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cable_ready_timeout--;
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}
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puts("\r\n");
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}
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while (1) {
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usb_gadget_handle_interrupts(controller_index);
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rc = fsg_main_thread(NULL);
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if (rc) {
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/* Check I/O error */
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if (rc == -EIO)
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printf("\rCheck USB cable connection\n");
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/* Check CTRL+C */
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if (rc == -EPIPE)
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printf("\rCTRL+C - Operation aborted\n");
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goto exit;
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}
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}
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exit:
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g_dnl_unregister();
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board_usb_cleanup(controller_index, USB_INIT_DEVICE);
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return CMD_RET_SUCCESS;
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}
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U_BOOT_CMD(ums, 4, 1, do_usb_mass_storage,
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"Use the UMS [USB Mass Storage]",
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"<USB_controller> [<devtype>] <devnum> e.g. ums 0 mmc 0\n"
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" devtype defaults to mmc"
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);
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