diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/dfu/dfu.c')
| -rw-r--r-- | qemu/roms/u-boot/drivers/dfu/dfu.c | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/qemu/roms/u-boot/drivers/dfu/dfu.c b/qemu/roms/u-boot/drivers/dfu/dfu.c deleted file mode 100644 index 51b10263b..000000000 --- a/qemu/roms/u-boot/drivers/dfu/dfu.c +++ /dev/null @@ -1,466 +0,0 @@ -/* - * dfu.c -- DFU back-end routines - * - * Copyright (C) 2012 Samsung Electronics - * author: Lukasz Majewski <l.majewski@samsung.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <errno.h> -#include <malloc.h> -#include <mmc.h> -#include <fat.h> -#include <dfu.h> -#include <linux/list.h> -#include <linux/compiler.h> - -static bool dfu_reset_request; -static LIST_HEAD(dfu_list); -static int dfu_alt_num; -static int alt_num_cnt; - -bool dfu_reset(void) -{ - return dfu_reset_request; -} - -void dfu_trigger_reset() -{ - dfu_reset_request = true; -} - -static int dfu_find_alt_num(const char *s) -{ - int i = 0; - - for (; *s; s++) - if (*s == ';') - i++; - - return ++i; -} - -int dfu_init_env_entities(char *interface, int dev) -{ - const char *str_env; - char *env_bkp; - int ret; - - str_env = getenv("dfu_alt_info"); - if (!str_env) { - error("\"dfu_alt_info\" env variable not defined!\n"); - return -EINVAL; - } - - env_bkp = strdup(str_env); - ret = dfu_config_entities(env_bkp, interface, dev); - if (ret) { - error("DFU entities configuration failed!\n"); - return ret; - } - - free(env_bkp); - return 0; -} - -static unsigned char *dfu_buf; -static unsigned long dfu_buf_size = CONFIG_SYS_DFU_DATA_BUF_SIZE; - -unsigned char *dfu_free_buf(void) -{ - free(dfu_buf); - dfu_buf = NULL; - return dfu_buf; -} - -unsigned long dfu_get_buf_size(void) -{ - return dfu_buf_size; -} - -unsigned char *dfu_get_buf(void) -{ - char *s; - - if (dfu_buf != NULL) - return dfu_buf; - - s = getenv("dfu_bufsiz"); - dfu_buf_size = s ? (unsigned long)simple_strtol(s, NULL, 16) : - CONFIG_SYS_DFU_DATA_BUF_SIZE; - - dfu_buf = memalign(CONFIG_SYS_CACHELINE_SIZE, dfu_buf_size); - if (dfu_buf == NULL) - printf("%s: Could not memalign 0x%lx bytes\n", - __func__, dfu_buf_size); - - return dfu_buf; -} - -static int dfu_write_buffer_drain(struct dfu_entity *dfu) -{ - long w_size; - int ret; - - /* flush size? */ - w_size = dfu->i_buf - dfu->i_buf_start; - if (w_size == 0) - return 0; - - /* update CRC32 */ - dfu->crc = crc32(dfu->crc, dfu->i_buf_start, w_size); - - ret = dfu->write_medium(dfu, dfu->offset, dfu->i_buf_start, &w_size); - if (ret) - debug("%s: Write error!\n", __func__); - - /* point back */ - dfu->i_buf = dfu->i_buf_start; - - /* update offset */ - dfu->offset += w_size; - - puts("#"); - - return ret; -} - -int dfu_flush(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num) -{ - int ret = 0; - - if (dfu->flush_medium) - ret = dfu->flush_medium(dfu); - - printf("\nDFU complete CRC32: 0x%08x\n", dfu->crc); - - /* clear everything */ - dfu_free_buf(); - dfu->crc = 0; - dfu->offset = 0; - dfu->i_blk_seq_num = 0; - dfu->i_buf_start = dfu_buf; - dfu->i_buf_end = dfu_buf; - dfu->i_buf = dfu->i_buf_start; - dfu->inited = 0; - - return ret; -} - -int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num) -{ - int ret = 0; - int tret; - - debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x offset: 0x%llx bufoffset: 0x%x\n", - __func__, dfu->name, buf, size, blk_seq_num, dfu->offset, - dfu->i_buf - dfu->i_buf_start); - - if (!dfu->inited) { - /* initial state */ - dfu->crc = 0; - dfu->offset = 0; - dfu->bad_skip = 0; - dfu->i_blk_seq_num = 0; - dfu->i_buf_start = dfu_get_buf(); - if (dfu->i_buf_start == NULL) - return -ENOMEM; - dfu->i_buf_end = dfu_get_buf() + dfu_buf_size; - dfu->i_buf = dfu->i_buf_start; - - dfu->inited = 1; - } - - if (dfu->i_blk_seq_num != blk_seq_num) { - printf("%s: Wrong sequence number! [%d] [%d]\n", - __func__, dfu->i_blk_seq_num, blk_seq_num); - return -1; - } - - /* DFU 1.1 standard says: - * The wBlockNum field is a block sequence number. It increments each - * time a block is transferred, wrapping to zero from 65,535. It is used - * to provide useful context to the DFU loader in the device." - * - * This means that it's a 16 bit counter that roll-overs at - * 0xffff -> 0x0000. By having a typical 4K transfer block - * we roll-over at exactly 256MB. Not very fun to debug. - * - * Handling rollover, and having an inited variable, - * makes things work. - */ - - /* handle rollover */ - dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff; - - /* flush buffer if overflow */ - if ((dfu->i_buf + size) > dfu->i_buf_end) { - tret = dfu_write_buffer_drain(dfu); - if (ret == 0) - ret = tret; - } - - /* we should be in buffer now (if not then size too large) */ - if ((dfu->i_buf + size) > dfu->i_buf_end) { - error("Buffer overflow! (0x%p + 0x%x > 0x%p)\n", dfu->i_buf, - size, dfu->i_buf_end); - return -1; - } - - memcpy(dfu->i_buf, buf, size); - dfu->i_buf += size; - - /* if end or if buffer full flush */ - if (size == 0 || (dfu->i_buf + size) > dfu->i_buf_end) { - tret = dfu_write_buffer_drain(dfu); - if (ret == 0) - ret = tret; - } - - return ret; -} - -static int dfu_read_buffer_fill(struct dfu_entity *dfu, void *buf, int size) -{ - long chunk; - int ret, readn; - - readn = 0; - while (size > 0) { - /* get chunk that can be read */ - chunk = min(size, dfu->b_left); - /* consume */ - if (chunk > 0) { - memcpy(buf, dfu->i_buf, chunk); - dfu->crc = crc32(dfu->crc, buf, chunk); - dfu->i_buf += chunk; - dfu->b_left -= chunk; - dfu->r_left -= chunk; - size -= chunk; - buf += chunk; - readn += chunk; - } - - /* all done */ - if (size > 0) { - /* no more to read */ - if (dfu->r_left == 0) - break; - - dfu->i_buf = dfu->i_buf_start; - dfu->b_left = dfu->i_buf_end - dfu->i_buf_start; - - /* got to read, but buffer is empty */ - if (dfu->b_left > dfu->r_left) - dfu->b_left = dfu->r_left; - ret = dfu->read_medium(dfu, dfu->offset, dfu->i_buf, - &dfu->b_left); - if (ret != 0) { - debug("%s: Read error!\n", __func__); - return ret; - } - dfu->offset += dfu->b_left; - dfu->r_left -= dfu->b_left; - - puts("#"); - } - } - - return readn; -} - -int dfu_read(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num) -{ - int ret = 0; - - debug("%s: name: %s buf: 0x%p size: 0x%x p_num: 0x%x i_buf: 0x%p\n", - __func__, dfu->name, buf, size, blk_seq_num, dfu->i_buf); - - if (!dfu->inited) { - dfu->i_buf_start = dfu_get_buf(); - if (dfu->i_buf_start == NULL) - return -ENOMEM; - - ret = dfu->read_medium(dfu, 0, dfu->i_buf_start, &dfu->r_left); - if (ret != 0) { - debug("%s: failed to get r_left\n", __func__); - return ret; - } - - debug("%s: %s %ld [B]\n", __func__, dfu->name, dfu->r_left); - - dfu->i_blk_seq_num = 0; - dfu->crc = 0; - dfu->offset = 0; - dfu->i_buf_end = dfu_get_buf() + dfu_buf_size; - dfu->i_buf = dfu->i_buf_start; - dfu->b_left = min(dfu_buf_size, dfu->r_left); - - dfu->bad_skip = 0; - - dfu->inited = 1; - } - - if (dfu->i_blk_seq_num != blk_seq_num) { - printf("%s: Wrong sequence number! [%d] [%d]\n", - __func__, dfu->i_blk_seq_num, blk_seq_num); - return -1; - } - /* handle rollover */ - dfu->i_blk_seq_num = (dfu->i_blk_seq_num + 1) & 0xffff; - - ret = dfu_read_buffer_fill(dfu, buf, size); - if (ret < 0) { - printf("%s: Failed to fill buffer\n", __func__); - return -1; - } - - if (ret < size) { - debug("%s: %s CRC32: 0x%x\n", __func__, dfu->name, dfu->crc); - puts("\nUPLOAD ... done\nCtrl+C to exit ...\n"); - - dfu_free_buf(); - dfu->i_blk_seq_num = 0; - dfu->crc = 0; - dfu->offset = 0; - dfu->i_buf_start = dfu_buf; - dfu->i_buf_end = dfu_buf; - dfu->i_buf = dfu->i_buf_start; - dfu->b_left = 0; - - dfu->bad_skip = 0; - - dfu->inited = 0; - } - - return ret; -} - -static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt, - char *interface, int num) -{ - char *st; - - debug("%s: %s interface: %s num: %d\n", __func__, s, interface, num); - st = strsep(&s, " "); - strcpy(dfu->name, st); - - dfu->dev_num = num; - dfu->alt = alt; - - /* Specific for mmc device */ - if (strcmp(interface, "mmc") == 0) { - if (dfu_fill_entity_mmc(dfu, s)) - return -1; - } else if (strcmp(interface, "nand") == 0) { - if (dfu_fill_entity_nand(dfu, s)) - return -1; - } else if (strcmp(interface, "ram") == 0) { - if (dfu_fill_entity_ram(dfu, s)) - return -1; - } else { - printf("%s: Device %s not (yet) supported!\n", - __func__, interface); - return -1; - } - - return 0; -} - -void dfu_free_entities(void) -{ - struct dfu_entity *dfu, *p, *t = NULL; - - list_for_each_entry_safe_reverse(dfu, p, &dfu_list, list) { - list_del(&dfu->list); - t = dfu; - } - if (t) - free(t); - INIT_LIST_HEAD(&dfu_list); - - alt_num_cnt = 0; -} - -int dfu_config_entities(char *env, char *interface, int num) -{ - struct dfu_entity *dfu; - int i, ret; - char *s; - - dfu_alt_num = dfu_find_alt_num(env); - debug("%s: dfu_alt_num=%d\n", __func__, dfu_alt_num); - - dfu = calloc(sizeof(*dfu), dfu_alt_num); - if (!dfu) - return -1; - for (i = 0; i < dfu_alt_num; i++) { - - s = strsep(&env, ";"); - ret = dfu_fill_entity(&dfu[i], s, alt_num_cnt, interface, num); - if (ret) - return -1; - - list_add_tail(&dfu[i].list, &dfu_list); - alt_num_cnt++; - } - - return 0; -} - -const char *dfu_get_dev_type(enum dfu_device_type t) -{ - const char *dev_t[] = {NULL, "eMMC", "OneNAND", "NAND", "RAM" }; - return dev_t[t]; -} - -const char *dfu_get_layout(enum dfu_layout l) -{ - const char *dfu_layout[] = {NULL, "RAW_ADDR", "FAT", "EXT2", - "EXT3", "EXT4", "RAM_ADDR" }; - return dfu_layout[l]; -} - -void dfu_show_entities(void) -{ - struct dfu_entity *dfu; - - puts("DFU alt settings list:\n"); - - list_for_each_entry(dfu, &dfu_list, list) { - printf("dev: %s alt: %d name: %s layout: %s\n", - dfu_get_dev_type(dfu->dev_type), dfu->alt, - dfu->name, dfu_get_layout(dfu->layout)); - } -} - -int dfu_get_alt_number(void) -{ - return dfu_alt_num; -} - -struct dfu_entity *dfu_get_entity(int alt) -{ - struct dfu_entity *dfu; - - list_for_each_entry(dfu, &dfu_list, list) { - if (dfu->alt == alt) - return dfu; - } - - return NULL; -} - -int dfu_get_alt(char *name) -{ - struct dfu_entity *dfu; - - list_for_each_entry(dfu, &dfu_list, list) { - if (!strncmp(dfu->name, name, strlen(dfu->name))) - return dfu->alt; - } - - return -ENODEV; -} |