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https://github.com/brain-hackers/u-boot-brain
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![Marek Vasut](/assets/img/avatar_default.png)
In case the gunzip() call fails, it will print an error message. If that happens within the YModem session, the error message will not be displayed and would be useless. Move the gunzip() call out of the YModem session to make those possible error messages visible. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Tom Rini <trini@konsulko.com>
156 lines
3.4 KiB
C
156 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2011
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* Texas Instruments, <www.ti.com>
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*
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* Matt Porter <mporter@ti.com>
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*/
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#include <common.h>
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#include <spl.h>
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#include <xyzModem.h>
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#include <asm/u-boot.h>
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#include <linux/libfdt.h>
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#define BUF_SIZE 1024
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/*
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* Information required to load image using ymodem.
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*
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* @image_read: Now of bytes read from the image.
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* @buf: pointer to the previous read block.
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*/
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struct ymodem_fit_info {
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int image_read;
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char *buf;
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};
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static int getcymodem(void) {
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if (tstc())
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return (getc());
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return -1;
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}
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static ulong ymodem_read_fit(struct spl_load_info *load, ulong offset,
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ulong size, void *addr)
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{
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int res, err;
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struct ymodem_fit_info *info = load->priv;
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char *buf = info->buf;
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while (info->image_read < offset) {
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res = xyzModem_stream_read(buf, BUF_SIZE, &err);
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if (res <= 0)
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return res;
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info->image_read += res;
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}
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if (info->image_read > offset) {
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res = info->image_read - offset;
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memcpy(addr, &buf[BUF_SIZE - res], res);
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addr = addr + res;
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}
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while (info->image_read < offset + size) {
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res = xyzModem_stream_read(buf, BUF_SIZE, &err);
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if (res <= 0)
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return res;
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memcpy(addr, buf, res);
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info->image_read += res;
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addr += res;
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}
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return size;
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}
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static int spl_ymodem_load_image(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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ulong size = 0;
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int err;
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int res;
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int ret;
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connection_info_t info;
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char buf[BUF_SIZE];
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struct image_header *ih = NULL;
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ulong addr = 0;
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info.mode = xyzModem_ymodem;
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ret = xyzModem_stream_open(&info, &err);
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if (ret) {
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printf("spl: ymodem err - %s\n", xyzModem_error(err));
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return ret;
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}
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res = xyzModem_stream_read(buf, BUF_SIZE, &err);
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if (res <= 0)
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goto end_stream;
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if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic((struct image_header *)buf) == FDT_MAGIC) {
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struct spl_load_info load;
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struct ymodem_fit_info info;
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debug("Found FIT\n");
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load.dev = NULL;
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load.priv = (void *)&info;
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load.filename = NULL;
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load.bl_len = 1;
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info.buf = buf;
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info.image_read = BUF_SIZE;
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load.read = ymodem_read_fit;
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ret = spl_load_simple_fit(spl_image, &load, 0, (void *)buf);
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size = info.image_read;
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while ((res = xyzModem_stream_read(buf, BUF_SIZE, &err)) > 0)
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size += res;
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} else {
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ih = (struct image_header *)buf;
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ret = spl_parse_image_header(spl_image, ih);
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if (ret)
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goto end_stream;
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#ifdef CONFIG_SPL_GZIP
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if (ih->ih_comp == IH_COMP_GZIP)
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addr = CONFIG_SYS_LOAD_ADDR;
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else
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#endif
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addr = spl_image->load_addr;
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memcpy((void *)addr, buf, res);
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ih = (struct image_header *)addr;
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size += res;
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addr += res;
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while ((res = xyzModem_stream_read(buf, BUF_SIZE, &err)) > 0) {
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memcpy((void *)addr, buf, res);
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size += res;
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addr += res;
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}
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}
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end_stream:
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xyzModem_stream_close(&err);
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xyzModem_stream_terminate(false, &getcymodem);
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printf("Loaded %lu bytes\n", size);
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#ifdef CONFIG_SPL_GZIP
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if (!(IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic((struct image_header *)buf) == FDT_MAGIC) &&
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(ih->ih_comp == IH_COMP_GZIP)) {
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if (gunzip((void *)(spl_image->load_addr + sizeof(*ih)),
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CONFIG_SYS_BOOTM_LEN,
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(void *)(CONFIG_SYS_LOAD_ADDR + sizeof(*ih)),
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&size)) {
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puts("Uncompressing error\n");
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return -EIO;
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}
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}
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#endif
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return ret;
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}
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SPL_LOAD_IMAGE_METHOD("UART", 0, BOOT_DEVICE_UART, spl_ymodem_load_image);
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