2 * dfu.h - DFU flashable area description
4 * Copyright (C) 2012 Samsung Electronics
5 * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
6 * Lukasz Majewski <l.majewski@samsung.com>
8 * SPDX-License-Identifier: GPL-2.0+
11 #ifndef __DFU_ENTITY_H_
12 #define __DFU_ENTITY_H_
15 #include <linux/list.h>
17 #include <spi_flash.h>
18 #include <linux/usb/composite.h>
20 enum dfu_device_type {
43 struct mmc_internal_data {
47 unsigned int lba_start;
48 unsigned int lba_size;
49 unsigned int lba_blk_size;
51 /* eMMC HW partition access */
59 struct nand_internal_data {
66 /* for nand/ubi use */
70 struct ram_internal_data {
75 struct sf_internal_data {
76 struct spi_flash *dev;
83 #define DFU_NAME_SIZE 32
84 #define DFU_CMD_BUF_SIZE 128
85 #ifndef CONFIG_SYS_DFU_DATA_BUF_SIZE
86 #define CONFIG_SYS_DFU_DATA_BUF_SIZE (1024*1024*8) /* 8 MiB */
88 #ifndef CONFIG_SYS_DFU_MAX_FILE_SIZE
89 #define CONFIG_SYS_DFU_MAX_FILE_SIZE CONFIG_SYS_DFU_DATA_BUF_SIZE
91 #ifndef DFU_DEFAULT_POLL_TIMEOUT
92 #define DFU_DEFAULT_POLL_TIMEOUT 0
94 #ifndef DFU_MANIFEST_POLL_TIMEOUT
95 #define DFU_MANIFEST_POLL_TIMEOUT DFU_DEFAULT_POLL_TIMEOUT
99 char name[DFU_NAME_SIZE];
102 enum dfu_device_type dev_type;
103 enum dfu_layout layout;
104 unsigned long max_buf_size;
107 struct mmc_internal_data mmc;
108 struct nand_internal_data nand;
109 struct ram_internal_data ram;
110 struct sf_internal_data sf;
113 long (*get_medium_size)(struct dfu_entity *dfu);
115 int (*read_medium)(struct dfu_entity *dfu,
116 u64 offset, void *buf, long *len);
118 int (*write_medium)(struct dfu_entity *dfu,
119 u64 offset, void *buf, long *len);
121 int (*flush_medium)(struct dfu_entity *dfu);
122 unsigned int (*poll_timeout)(struct dfu_entity *dfu);
124 void (*free_entity)(struct dfu_entity *dfu);
126 struct list_head list;
128 /* on the fly state */
138 u32 bad_skip; /* for nand use */
140 unsigned int inited:1;
143 #ifdef CONFIG_SET_DFU_ALT_INFO
144 void set_dfu_alt_info(char *interface, char *devstr);
146 int dfu_config_entities(char *s, char *interface, char *devstr);
147 void dfu_free_entities(void);
148 void dfu_show_entities(void);
149 int dfu_get_alt_number(void);
150 const char *dfu_get_dev_type(enum dfu_device_type t);
151 const char *dfu_get_layout(enum dfu_layout l);
152 struct dfu_entity *dfu_get_entity(int alt);
153 char *dfu_extract_token(char** e, int *n);
154 void dfu_trigger_reset(void);
155 int dfu_get_alt(char *name);
156 int dfu_init_env_entities(char *interface, char *devstr);
157 unsigned char *dfu_get_buf(struct dfu_entity *dfu);
158 unsigned char *dfu_free_buf(void);
159 unsigned long dfu_get_buf_size(void);
160 bool dfu_usb_get_reset(void);
162 int dfu_read(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
163 int dfu_write(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
164 int dfu_flush(struct dfu_entity *de, void *buf, int size, int blk_seq_num);
167 * dfu_write_from_mem_addr - write data from memory to DFU managed medium
169 * This function adds support for writing data starting from fixed memory
170 * address (like $loadaddr) to dfu managed medium (e.g. NAND, MMC, file system)
172 * @param dfu - dfu entity to which we want to store data
173 * @param buf - fixed memory addres from where data starts
174 * @param size - number of bytes to write
176 * @return - 0 on success, other value on failure
178 int dfu_write_from_mem_addr(struct dfu_entity *dfu, void *buf, int size);
180 /* Device specific */
181 #ifdef CONFIG_DFU_MMC
182 extern int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr, char *s);
184 static inline int dfu_fill_entity_mmc(struct dfu_entity *dfu, char *devstr,
187 puts("MMC support not available!\n");
192 #ifdef CONFIG_DFU_NAND
193 extern int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr, char *s);
195 static inline int dfu_fill_entity_nand(struct dfu_entity *dfu, char *devstr,
198 puts("NAND support not available!\n");
203 #ifdef CONFIG_DFU_RAM
204 extern int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr, char *s);
206 static inline int dfu_fill_entity_ram(struct dfu_entity *dfu, char *devstr,
209 puts("RAM support not available!\n");
215 extern int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s);
217 static inline int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr,
220 puts("SF support not available!\n");
226 * dfu_tftp_write - Write TFTP data to DFU medium
228 * This function is storing data received via TFTP on DFU supported medium.
230 * @param dfu_entity_name - name of DFU entity to write
231 * @param addr - address of data buffer to write
232 * @param len - number of bytes
233 * @param interface - destination DFU medium (e.g. "mmc")
234 * @param devstring - instance number of destination DFU medium (e.g. "1")
236 * @return 0 on success, otherwise error code
238 #ifdef CONFIG_DFU_TFTP
239 int dfu_tftp_write(char *dfu_entity_name, unsigned int addr, unsigned int len,
240 char *interface, char *devstring);
242 static inline int dfu_tftp_write(char *dfu_entity_name, unsigned int addr,
243 unsigned int len, char *interface,
246 puts("TFTP write support for DFU not available!\n");
251 int dfu_add(struct usb_configuration *c);
252 #endif /* __DFU_ENTITY_H_ */