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support uf2 for msc

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This commit is contained in:
hathach
2018-06-20 15:24:49 +07:00
parent bc59c097c1
commit 6d0b272858
2 changed files with 71 additions and 28 deletions
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1
src/segger/nrf52840_bootloader.emProject
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@@ -64,7 +64,6 @@
<file file_name="../usb/tusb_descriptors.c" />
<file file_name="../usb/tusb_descriptors.h" />
<folder Name="uf2">
<file file_name="../usb/uf2/ghostfat.c" />
<file file_name="../usb/uf2/uf2cfg.h" />
<file file_name="../usb/uf2/uf2.h" />
</folder>

78
src/usb/msc_flash.c
View File

@@ -43,6 +43,9 @@
// for formatting fatfs when Softdevice is not enabled
#include "nrf_nvmc.h"
#include "uf2/uf2.h"
/*------------------------------------------------------------------*/
/* MACRO TYPEDEF CONSTANT ENUM
*------------------------------------------------------------------*/
@@ -410,9 +413,9 @@ typedef ATTR_PACKED_STRUCT(struct) {
uint16_t written_date;
uint16_t cluster_low;
uint32_t file_size;
}fat_directory_t;
}fat_dirent_t;
VERIFY_STATIC(sizeof(fat_directory_t) == 32, "size is not correct");
VERIFY_STATIC(sizeof(fat_dirent_t) == 32, "size is not correct");
fat12_boot_sector_t const _boot_sect =
@@ -466,17 +469,47 @@ fat12_boot_sector_t const _boot_sect =
static inline bool fat12_formatted(void)
{
const uint8_t* boot_sect = (uint8_t* ) lba2addr(0);
return (boot_sect[510] == 0x55) && (boot_sect[511] == 0xAA);
return false;
//return (boot_sect[510] == 0x55) && (boot_sect[511] == 0xAA);
}
static void fat12_write_sector(uint32_t lba, uint8_t const* buf, uint32_t bufsize)
static void fat12_write_sector(uint32_t sect, uint8_t const* buf, uint32_t bufsize)
{
uint32_t addr = lba2addr(lba);
uint32_t addr = lba2addr(sect);
nrf_nvmc_page_erase( addr );
nrf_nvmc_write_words(addr, (uint32_t const*) buf, bufsize/4);
}
const char infoUf2File[] = //
"UF2 Bootloader " UF2_VERSION "\r\n"
"Model: " PRODUCT_NAME "\r\n"
"Board-ID: " BOARD_ID "\r\n";
const char indexFile[] = //
"<!doctype html>\n"
"<html>"
"<body>"
"<script>\n"
"location.replace(\"" INDEX_URL "\");\n"
"</script>"
"</body>"
"</html>\n";
uint8_t const readme_contents[] = "Adafruit Feather nRF52840";
struct TextFile {
const char name[11];
const char *content;
};
static const struct TextFile info[] = {
{.name = "INFO_UF2TXT", .content = infoUf2File},
{.name = "INDEX HTM", .content = indexFile},
{.name = "CURRENT UF2", .content = readme_contents},
};
static void fat12_mkfs(void)
{
memclr_(_page_cached, sizeof(_page_cached));
@@ -495,22 +528,23 @@ static void fat12_mkfs(void)
fat12_write_sector(0, _page_cached, FL_PAGE_SIZE);
//------------- Root Directory cluster -------------//
uint8_t const readme_contents[] = "Adafruit Feather nRF52840";
memclr_(_page_cached, sizeof(_page_cached));
fat_directory_t* p_entry = (fat_directory_t*) _page_cached;
fat_dirent_t* p_entry = (fat_dirent_t*) _page_cached;
// first entry is volume label
(*p_entry) = (fat_directory_t)
(*p_entry) = (fat_dirent_t)
{
.name = MSC_FLASH_VOL_LABEL,
.attr.volume_label = 1,
};
p_entry++; // next entry
p_entry += 1; // advance to second entry, which is readme file
(*p_entry) = (fat_directory_t)
uint16_t data_cluster = 2; // logical data cluster always start from 2
for(int i=0; i<arrcount_(info); i++)
{
.name = "README TXT",
(*p_entry) = (fat_dirent_t)
{
.name = { 0 },
.attr = { 0 },
.reserved = 0,
@@ -525,18 +559,28 @@ static void fat12_mkfs(void)
.written_time = 0x6D52,
.written_date = 0x4365,
.cluster_low = 2,
.file_size = sizeof(readme_contents)-1 // exclude NULL
.cluster_low = data_cluster,
.file_size = strlen(info[i].content)
};
memcpy(p_entry->name, info[i].name, 11);
data_cluster++;
p_entry++;
}
// Erase and Write cluster.
fat12_write_sector(8, _page_cached, FL_PAGE_SIZE);
//------------- Readme Content cluster -------------//
//------------- Data Contents -------------//
memclr_(_page_cached, sizeof(_page_cached));
memcpy(_page_cached, readme_contents, sizeof(readme_contents)-1);
// Erase and Write cluster.
for(int i=0; i<arrcount_(info); i++)
{
memcpy(_page_cached + i*512, info[i].content, strlen(info[i].content));
}
// Erase and Write data cluster.
fat12_write_sector(16, _page_cached, FL_PAGE_SIZE);
}