#include <stdio.h>
#include <stdint.h>
+#include <stdlib.h>
#include <console.h>
#include <uart.h>
#include <system.h>
#include "sfl.h"
#include "boot.h"
+#include "jsmn.h"
#include <progress.h>
#include <spiflash.h>
return ((uint32_t) data[0] << 24) |
((uint32_t) data[1] << 16) |
((uint32_t) data[2] << 8) |
- (uint32_t) data[3];
+ (uint32_t) data[3];
}
#define MAX_FAILED 5
#if defined(CSR_SPISDCARD_BASE) || defined(CSR_SDCORE_BASE)
-static int copy_image_from_sdcard_to_ram(const char * filename, unsigned int ram_address)
+static int copy_file_from_sdcard_to_ram(const char * filename, unsigned int ram_address)
{
FRESULT fr;
FATFS fs;
return 1;
}
-void sdcardboot(void)
+static void sdcardboot_from_json(const char * filename)
{
+ FRESULT fr;
+ FATFS fs;
+ FIL file;
+
+ uint8_t i;
+ uint8_t count;
+ uint32_t length;
+ uint32_t result;
+
+ /* FIXME: modify/increase if too limiting */
+ char json_buffer[256];
+ char image_filename[32];
+ char image_address[32];
+ uint8_t image_found;
+
+ /* Read JSON file */
+ fr = f_mount(&fs, "", 1);
+ if (fr != FR_OK)
+ return;
+ fr = f_open(&file, filename, FA_READ);
+ if (fr != FR_OK) {
+ printf("%s file not found.\n", filename);
+ f_mount(0, "", 0);
+ return;
+ }
+
+ fr = f_read(&file, json_buffer, sizeof(json_buffer), &length);
+ /* Close JSON file */
+ f_close(&file);
+ f_mount(0, "", 0);
+
+ /* Parse JSON file */
+ jsmntok_t t[16];
+ jsmn_parser p;
+ jsmn_init(&p);
+ image_found = 0;
+ count = jsmn_parse(&p, json_buffer, strlen(json_buffer), t, sizeof(t)/sizeof(*t));
+ for (i=0; i<count-1; i++) {
+ /* Images are JSON strings with 1 children */
+ if ((t[i].type == JSMN_STRING) && (t[i].size == 1)) {
+ /* Get Image filename */
+ memset(image_filename, 0, sizeof(image_filename));
+ memcpy(image_filename, json_buffer+t[i].start, t[i].end - t[i].start);
+ /* Get Image address */
+ memset(image_address, 0, sizeof(image_address));
+ memcpy(image_address, json_buffer+t[i+1].start, t[i+1].end - t[i+1].start);
+ /* Copy Image from SDCard to address */
+ result = copy_file_from_sdcard_to_ram(image_filename, strtoul(image_address, NULL, 0));
+ if (result == 0)
+ return;
+ image_found = 1;
+ }
+ }
+
+ /* Boot to last Image address */
+ if (image_found)
+ boot(0, 0, 0, strtoul(image_address, NULL, 0));
+}
+
+static void sdcardboot_from_bin(const char * filename)
+{
uint32_t result;
+ result = copy_file_from_sdcard_to_ram(filename, MAIN_RAM_BASE);
+ if (result == 0)
+ return;
+ boot(0, 0, 0, MAIN_RAM_BASE);
+}
+void sdcardboot(void)
+{
#ifdef CSR_SPISDCARD_BASE
printf("Booting from SDCard in SPI-Mode...\n");
#endif
printf("Booting from SDCard in SD-Mode...\n");
#endif
- /* Copy files to RAM */
-#if defined(CONFIG_CPU_TYPE_VEXRISCV) && defined(CONFIG_CPU_VARIANT_LINUX)
- printf("Loading Linux images from SDCard to RAM...\n");
- result = copy_image_from_sdcard_to_ram("rv32.dtb", MAIN_RAM_BASE + DEVICE_TREE_IMAGE_RAM_OFFSET);
- if (result)
- result &= copy_image_from_sdcard_to_ram("emulator.bin", MAIN_RAM_BASE + EMULATOR_IMAGE_RAM_OFFSET);
- if (result)
- result &= copy_image_from_sdcard_to_ram("Image", MAIN_RAM_BASE + KERNEL_IMAGE_RAM_OFFSET);
- if (result)
- result &= copy_image_from_sdcard_to_ram("rootfs.cpio", MAIN_RAM_BASE + ROOTFS_IMAGE_RAM_OFFSET);
- if (result)
- boot(0, 0, 0, MAIN_RAM_BASE + EMULATOR_IMAGE_RAM_OFFSET);
- printf("Unable to load all Linux images, falling back to boot.bin...\n");
-#endif
+ /* Boot from boot.json */
+ printf("Booting from boot.json...\n");
+ sdcardboot_from_json("boot.json");
-#if defined(CONFIG_CPU_TYPE_VEXRISCV) && \
- (defined(CONFIG_CPU_VARIANT_1C) || \
- defined(CONFIG_CPU_VARIANT_2C) || \
- defined(CONFIG_CPU_VARIANT_4C) || \
- defined(CONFIG_CPU_VARIANT_8C) || \
- defined(CONFIG_CPU_VARIANT_MP1C) || \
- defined(CONFIG_CPU_VARIANT_MP2C) || \
- defined(CONFIG_CPU_VARIANT_MP4C) || \
- defined(CONFIG_CPU_VARIANT_MP8C))
- printf("Loading Linux images from SDCard to RAM...\n");
- result = copy_image_from_sdcard_to_ram("Image", 0x40000000);
- if (result)
- result &= copy_image_from_sdcard_to_ram("dtb", 0x40ef0000);
- if (result)
- result &= copy_image_from_sdcard_to_ram("rootfs.cpio", 0x41000000);
- if (result)
- result &= copy_image_from_sdcard_to_ram("fw_jump.bin", 0x40f00000);
- if (result)
- boot(0, 0, 0, 0x40f00000);
- printf("Unable to load all Linux images, falling back to boot.bin...\n");
-#endif
+ /* Boot from boot.bin */
+ printf("Booting from boot.bin...\n");
+ sdcardboot_from_bin("boot.bin");
- result = copy_image_from_sdcard_to_ram("boot.bin", MAIN_RAM_BASE);
- if(result)
- boot(0, 0, 0, MAIN_RAM_BASE);
- else
- printf("SDCard boot failed.\n");
+ /* Boot failed if we are here... */
+ printf("SDCard boot failed.\n");
}
#endif
--- /dev/null
+/*
+ * MIT License
+ *
+ * Copyright (c) 2010 Serge Zaitsev
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef JSMN_H
+#define JSMN_H
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef JSMN_STATIC
+#define JSMN_API static
+#else
+#define JSMN_API extern
+#endif
+
+/**
+ * JSON type identifier. Basic types are:
+ * o Object
+ * o Array
+ * o String
+ * o Other primitive: number, boolean (true/false) or null
+ */
+typedef enum {
+ JSMN_UNDEFINED = 0,
+ JSMN_OBJECT = 1,
+ JSMN_ARRAY = 2,
+ JSMN_STRING = 3,
+ JSMN_PRIMITIVE = 4
+} jsmntype_t;
+
+enum jsmnerr {
+ /* Not enough tokens were provided */
+ JSMN_ERROR_NOMEM = -1,
+ /* Invalid character inside JSON string */
+ JSMN_ERROR_INVAL = -2,
+ /* The string is not a full JSON packet, more bytes expected */
+ JSMN_ERROR_PART = -3
+};
+
+/**
+ * JSON token description.
+ * type type (object, array, string etc.)
+ * start start position in JSON data string
+ * end end position in JSON data string
+ */
+typedef struct jsmntok {
+ jsmntype_t type;
+ int start;
+ int end;
+ int size;
+#ifdef JSMN_PARENT_LINKS
+ int parent;
+#endif
+} jsmntok_t;
+
+/**
+ * JSON parser. Contains an array of token blocks available. Also stores
+ * the string being parsed now and current position in that string.
+ */
+typedef struct jsmn_parser {
+ unsigned int pos; /* offset in the JSON string */
+ unsigned int toknext; /* next token to allocate */
+ int toksuper; /* superior token node, e.g. parent object or array */
+} jsmn_parser;
+
+/**
+ * Create JSON parser over an array of tokens
+ */
+JSMN_API void jsmn_init(jsmn_parser *parser);
+
+/**
+ * Run JSON parser. It parses a JSON data string into and array of tokens, each
+ * describing
+ * a single JSON object.
+ */
+JSMN_API int jsmn_parse(jsmn_parser *parser, const char *js, const size_t len,
+ jsmntok_t *tokens, const unsigned int num_tokens);
+
+#ifndef JSMN_HEADER
+/**
+ * Allocates a fresh unused token from the token pool.
+ */
+static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser, jsmntok_t *tokens,
+ const size_t num_tokens) {
+ jsmntok_t *tok;
+ if (parser->toknext >= num_tokens) {
+ return NULL;
+ }
+ tok = &tokens[parser->toknext++];
+ tok->start = tok->end = -1;
+ tok->size = 0;
+#ifdef JSMN_PARENT_LINKS
+ tok->parent = -1;
+#endif
+ return tok;
+}
+
+/**
+ * Fills token type and boundaries.
+ */
+static void jsmn_fill_token(jsmntok_t *token, const jsmntype_t type,
+ const int start, const int end) {
+ token->type = type;
+ token->start = start;
+ token->end = end;
+ token->size = 0;
+}
+
+/**
+ * Fills next available token with JSON primitive.
+ */
+static int jsmn_parse_primitive(jsmn_parser *parser, const char *js,
+ const size_t len, jsmntok_t *tokens,
+ const size_t num_tokens) {
+ jsmntok_t *token;
+ int start;
+
+ start = parser->pos;
+
+ for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
+ switch (js[parser->pos]) {
+#ifndef JSMN_STRICT
+ /* In strict mode primitive must be followed by "," or "}" or "]" */
+ case ':':
+#endif
+ case '\t':
+ case '\r':
+ case '\n':
+ case ' ':
+ case ',':
+ case ']':
+ case '}':
+ goto found;
+ default:
+ /* to quiet a warning from gcc*/
+ break;
+ }
+ if (js[parser->pos] < 32 || js[parser->pos] >= 127) {
+ parser->pos = start;
+ return JSMN_ERROR_INVAL;
+ }
+ }
+#ifdef JSMN_STRICT
+ /* In strict mode primitive must be followed by a comma/object/array */
+ parser->pos = start;
+ return JSMN_ERROR_PART;
+#endif
+
+found:
+ if (tokens == NULL) {
+ parser->pos--;
+ return 0;
+ }
+ token = jsmn_alloc_token(parser, tokens, num_tokens);
+ if (token == NULL) {
+ parser->pos = start;
+ return JSMN_ERROR_NOMEM;
+ }
+ jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
+#ifdef JSMN_PARENT_LINKS
+ token->parent = parser->toksuper;
+#endif
+ parser->pos--;
+ return 0;
+}
+
+/**
+ * Fills next token with JSON string.
+ */
+static int jsmn_parse_string(jsmn_parser *parser, const char *js,
+ const size_t len, jsmntok_t *tokens,
+ const size_t num_tokens) {
+ jsmntok_t *token;
+
+ int start = parser->pos;
+
+ parser->pos++;
+
+ /* Skip starting quote */
+ for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
+ char c = js[parser->pos];
+
+ /* Quote: end of string */
+ if (c == '\"') {
+ if (tokens == NULL) {
+ return 0;
+ }
+ token = jsmn_alloc_token(parser, tokens, num_tokens);
+ if (token == NULL) {
+ parser->pos = start;
+ return JSMN_ERROR_NOMEM;
+ }
+ jsmn_fill_token(token, JSMN_STRING, start + 1, parser->pos);
+#ifdef JSMN_PARENT_LINKS
+ token->parent = parser->toksuper;
+#endif
+ return 0;
+ }
+
+ /* Backslash: Quoted symbol expected */
+ if (c == '\\' && parser->pos + 1 < len) {
+ int i;
+ parser->pos++;
+ switch (js[parser->pos]) {
+ /* Allowed escaped symbols */
+ case '\"':
+ case '/':
+ case '\\':
+ case 'b':
+ case 'f':
+ case 'r':
+ case 'n':
+ case 't':
+ break;
+ /* Allows escaped symbol \uXXXX */
+ case 'u':
+ parser->pos++;
+ for (i = 0; i < 4 && parser->pos < len && js[parser->pos] != '\0';
+ i++) {
+ /* If it isn't a hex character we have an error */
+ if (!((js[parser->pos] >= 48 && js[parser->pos] <= 57) || /* 0-9 */
+ (js[parser->pos] >= 65 && js[parser->pos] <= 70) || /* A-F */
+ (js[parser->pos] >= 97 && js[parser->pos] <= 102))) { /* a-f */
+ parser->pos = start;
+ return JSMN_ERROR_INVAL;
+ }
+ parser->pos++;
+ }
+ parser->pos--;
+ break;
+ /* Unexpected symbol */
+ default:
+ parser->pos = start;
+ return JSMN_ERROR_INVAL;
+ }
+ }
+ }
+ parser->pos = start;
+ return JSMN_ERROR_PART;
+}
+
+/**
+ * Parse JSON string and fill tokens.
+ */
+JSMN_API int jsmn_parse(jsmn_parser *parser, const char *js, const size_t len,
+ jsmntok_t *tokens, const unsigned int num_tokens) {
+ int r;
+ int i;
+ jsmntok_t *token;
+ int count = parser->toknext;
+
+ for (; parser->pos < len && js[parser->pos] != '\0'; parser->pos++) {
+ char c;
+ jsmntype_t type;
+
+ c = js[parser->pos];
+ switch (c) {
+ case '{':
+ case '[':
+ count++;
+ if (tokens == NULL) {
+ break;
+ }
+ token = jsmn_alloc_token(parser, tokens, num_tokens);
+ if (token == NULL) {
+ return JSMN_ERROR_NOMEM;
+ }
+ if (parser->toksuper != -1) {
+ jsmntok_t *t = &tokens[parser->toksuper];
+#ifdef JSMN_STRICT
+ /* In strict mode an object or array can't become a key */
+ if (t->type == JSMN_OBJECT) {
+ return JSMN_ERROR_INVAL;
+ }
+#endif
+ t->size++;
+#ifdef JSMN_PARENT_LINKS
+ token->parent = parser->toksuper;
+#endif
+ }
+ token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
+ token->start = parser->pos;
+ parser->toksuper = parser->toknext - 1;
+ break;
+ case '}':
+ case ']':
+ if (tokens == NULL) {
+ break;
+ }
+ type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
+#ifdef JSMN_PARENT_LINKS
+ if (parser->toknext < 1) {
+ return JSMN_ERROR_INVAL;
+ }
+ token = &tokens[parser->toknext - 1];
+ for (;;) {
+ if (token->start != -1 && token->end == -1) {
+ if (token->type != type) {
+ return JSMN_ERROR_INVAL;
+ }
+ token->end = parser->pos + 1;
+ parser->toksuper = token->parent;
+ break;
+ }
+ if (token->parent == -1) {
+ if (token->type != type || parser->toksuper == -1) {
+ return JSMN_ERROR_INVAL;
+ }
+ break;
+ }
+ token = &tokens[token->parent];
+ }
+#else
+ for (i = parser->toknext - 1; i >= 0; i--) {
+ token = &tokens[i];
+ if (token->start != -1 && token->end == -1) {
+ if (token->type != type) {
+ return JSMN_ERROR_INVAL;
+ }
+ parser->toksuper = -1;
+ token->end = parser->pos + 1;
+ break;
+ }
+ }
+ /* Error if unmatched closing bracket */
+ if (i == -1) {
+ return JSMN_ERROR_INVAL;
+ }
+ for (; i >= 0; i--) {
+ token = &tokens[i];
+ if (token->start != -1 && token->end == -1) {
+ parser->toksuper = i;
+ break;
+ }
+ }
+#endif
+ break;
+ case '\"':
+ r = jsmn_parse_string(parser, js, len, tokens, num_tokens);
+ if (r < 0) {
+ return r;
+ }
+ count++;
+ if (parser->toksuper != -1 && tokens != NULL) {
+ tokens[parser->toksuper].size++;
+ }
+ break;
+ case '\t':
+ case '\r':
+ case '\n':
+ case ' ':
+ break;
+ case ':':
+ parser->toksuper = parser->toknext - 1;
+ break;
+ case ',':
+ if (tokens != NULL && parser->toksuper != -1 &&
+ tokens[parser->toksuper].type != JSMN_ARRAY &&
+ tokens[parser->toksuper].type != JSMN_OBJECT) {
+#ifdef JSMN_PARENT_LINKS
+ parser->toksuper = tokens[parser->toksuper].parent;
+#else
+ for (i = parser->toknext - 1; i >= 0; i--) {
+ if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT) {
+ if (tokens[i].start != -1 && tokens[i].end == -1) {
+ parser->toksuper = i;
+ break;
+ }
+ }
+ }
+#endif
+ }
+ break;
+#ifdef JSMN_STRICT
+ /* In strict mode primitives are: numbers and booleans */
+ case '-':
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ case 't':
+ case 'f':
+ case 'n':
+ /* And they must not be keys of the object */
+ if (tokens != NULL && parser->toksuper != -1) {
+ const jsmntok_t *t = &tokens[parser->toksuper];
+ if (t->type == JSMN_OBJECT ||
+ (t->type == JSMN_STRING && t->size != 0)) {
+ return JSMN_ERROR_INVAL;
+ }
+ }
+#else
+ /* In non-strict mode every unquoted value is a primitive */
+ default:
+#endif
+ r = jsmn_parse_primitive(parser, js, len, tokens, num_tokens);
+ if (r < 0) {
+ return r;
+ }
+ count++;
+ if (parser->toksuper != -1 && tokens != NULL) {
+ tokens[parser->toksuper].size++;
+ }
+ break;
+
+#ifdef JSMN_STRICT
+ /* Unexpected char in strict mode */
+ default:
+ return JSMN_ERROR_INVAL;
+#endif
+ }
+ }
+
+ if (tokens != NULL) {
+ for (i = parser->toknext - 1; i >= 0; i--) {
+ /* Unmatched opened object or array */
+ if (tokens[i].start != -1 && tokens[i].end == -1) {
+ return JSMN_ERROR_PART;
+ }
+ }
+ }
+
+ return count;
+}
+
+/**
+ * Creates a new parser based over a given buffer with an array of tokens
+ * available.
+ */
+JSMN_API void jsmn_init(jsmn_parser *parser) {
+ parser->pos = 0;
+ parser->toknext = 0;
+ parser->toksuper = -1;
+}
+
+#endif /* JSMN_HEADER */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* JSMN_H */
projects / litex.git / commitdiff