diff options
Diffstat (limited to 'drivers/dfu')
| -rw-r--r-- | drivers/dfu/Makefile | 1 | ||||
| -rw-r--r-- | drivers/dfu/dfu.c | 34 | ||||
| -rw-r--r-- | drivers/dfu/dfu_mmc.c | 9 | ||||
| -rw-r--r-- | drivers/dfu/dfu_nand.c | 7 | ||||
| -rw-r--r-- | drivers/dfu/dfu_ram.c | 77 |
5 files changed, 111 insertions, 17 deletions
diff --git a/drivers/dfu/Makefile b/drivers/dfu/Makefile index fca370ae0..de9e44e1e 100644 --- a/drivers/dfu/Makefile +++ b/drivers/dfu/Makefile @@ -12,6 +12,7 @@ LIB = $(obj)libdfu.o COBJS-$(CONFIG_DFU_FUNCTION) += dfu.o COBJS-$(CONFIG_DFU_MMC) += dfu_mmc.o COBJS-$(CONFIG_DFU_NAND) += dfu_nand.o +COBJS-$(CONFIG_DFU_RAM) += dfu_ram.o SRCS := $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(COBJS-y)) diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c index d73d51039..56b21c78a 100644 --- a/drivers/dfu/dfu.c +++ b/drivers/dfu/dfu.c @@ -41,6 +41,29 @@ static int dfu_find_alt_num(const char *s) 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; @@ -153,8 +176,8 @@ int dfu_write(struct dfu_entity *dfu, void *buf, int size, int blk_seq_num) /* we should be in buffer now (if not then size too large) */ if ((dfu->i_buf + size) > dfu->i_buf_end) { - printf("%s: Wrong size! [%d] [%d] - %d\n", - __func__, dfu->i_blk_seq_num, blk_seq_num, size); + error("Buffer overflow! (0x%p + 0x%x > 0x%p)\n", dfu->i_buf, + size, dfu->i_buf_end); return -1; } @@ -325,6 +348,9 @@ static int dfu_fill_entity(struct dfu_entity *dfu, char *s, int alt, } 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); @@ -374,14 +400,14 @@ int dfu_config_entities(char *env, char *interface, int num) const char *dfu_get_dev_type(enum dfu_device_type t) { - const char *dev_t[] = {NULL, "eMMC", "OneNAND", "NAND" }; + 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" }; + "EXT3", "EXT4", "RAM_ADDR" }; return dfu_layout[l]; } diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c index 0871a770b..f94275869 100644 --- a/drivers/dfu/dfu_mmc.c +++ b/drivers/dfu/dfu_mmc.c @@ -13,16 +13,11 @@ #include <div64.h> #include <dfu.h> -enum dfu_mmc_op { - DFU_OP_READ = 1, - DFU_OP_WRITE, -}; - static unsigned char __aligned(CONFIG_SYS_CACHELINE_SIZE) dfu_file_buf[CONFIG_SYS_DFU_MAX_FILE_SIZE]; static long dfu_file_buf_len; -static int mmc_block_op(enum dfu_mmc_op op, struct dfu_entity *dfu, +static int mmc_block_op(enum dfu_op op, struct dfu_entity *dfu, u64 offset, void *buf, long *len) { char cmd_buf[DFU_CMD_BUF_SIZE]; @@ -65,7 +60,7 @@ static int mmc_file_buffer(struct dfu_entity *dfu, void *buf, long *len) return 0; } -static int mmc_file_op(enum dfu_mmc_op op, struct dfu_entity *dfu, +static int mmc_file_op(enum dfu_op op, struct dfu_entity *dfu, void *buf, long *len) { char cmd_buf[DFU_CMD_BUF_SIZE]; diff --git a/drivers/dfu/dfu_nand.c b/drivers/dfu/dfu_nand.c index 0ec12cff2..edbf5a97b 100644 --- a/drivers/dfu/dfu_nand.c +++ b/drivers/dfu/dfu_nand.c @@ -19,12 +19,7 @@ #include <jffs2/load_kernel.h> #include <nand.h> -enum dfu_nand_op { - DFU_OP_READ = 1, - DFU_OP_WRITE, -}; - -static int nand_block_op(enum dfu_nand_op op, struct dfu_entity *dfu, +static int nand_block_op(enum dfu_op op, struct dfu_entity *dfu, u64 offset, void *buf, long *len) { loff_t start, lim; diff --git a/drivers/dfu/dfu_ram.c b/drivers/dfu/dfu_ram.c new file mode 100644 index 000000000..335a8e1f2 --- /dev/null +++ b/drivers/dfu/dfu_ram.c @@ -0,0 +1,77 @@ +/* + * (C) Copyright 2013 + * Afzal Mohammed <afzal.mohd.ma@gmail.com> + * + * Reference: dfu_mmc.c + * Copyright (C) 2012 Samsung Electronics + * author: Lukasz Majewski <l.majewski@samsung.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <malloc.h> +#include <errno.h> +#include <dfu.h> + +static int dfu_transfer_medium_ram(enum dfu_op op, struct dfu_entity *dfu, + u64 offset, void *buf, long *len) +{ + if (dfu->layout != DFU_RAM_ADDR) { + error("unsupported layout: %s\n", dfu_get_layout(dfu->layout)); + return -EINVAL; + } + + if (offset > dfu->data.ram.size) { + error("request exceeds allowed area\n"); + return -EINVAL; + } + + if (op == DFU_OP_WRITE) + memcpy(dfu->data.ram.start + offset, buf, *len); + else + memcpy(buf, dfu->data.ram.start + offset, *len); + + return 0; +} + +static int dfu_write_medium_ram(struct dfu_entity *dfu, u64 offset, + void *buf, long *len) +{ + return dfu_transfer_medium_ram(DFU_OP_WRITE, dfu, offset, buf, len); +} + +static int dfu_read_medium_ram(struct dfu_entity *dfu, u64 offset, + void *buf, long *len) +{ + if (!*len) { + *len = dfu->data.ram.size; + return 0; + } + + return dfu_transfer_medium_ram(DFU_OP_READ, dfu, offset, buf, len); +} + +int dfu_fill_entity_ram(struct dfu_entity *dfu, char *s) +{ + char *st; + + dfu->dev_type = DFU_DEV_RAM; + st = strsep(&s, " "); + if (strcmp(st, "ram")) { + error("unsupported device: %s\n", st); + return -ENODEV; + } + + dfu->layout = DFU_RAM_ADDR; + dfu->data.ram.start = (void *)simple_strtoul(s, &s, 16); + s++; + dfu->data.ram.size = simple_strtoul(s, &s, 16); + + dfu->write_medium = dfu_write_medium_ram; + dfu->read_medium = dfu_read_medium_ram; + + dfu->inited = 0; + + return 0; +} |