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Merge pull request #1519 from tannewt/speed_debug

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Add fast seek support and turn on auto brightness by default
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Kattni 2019-02-04 17:56:40 -05:00 committed by GitHub
commit 9bcc38e995
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 20 additions and 1 deletions
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17
extmod/vfs_fat_file.c
View File

@ -197,6 +197,23 @@ STATIC mp_obj_t file_open(fs_user_mount_t *vfs, const mp_obj_type_t *type, mp_ar
m_del_obj(pyb_file_obj_t, o);
mp_raise_OSError(fresult_to_errno_table[res]);
}
// If we're reading, turn on fast seek.
if (mode == FA_READ) {
// one call to determine how much space we need.
DWORD temp_table[2];
temp_table[0] = 2;
o->fp.cltbl = temp_table;
f_lseek(&o->fp, CREATE_LINKMAP);
DWORD size = (temp_table[0] + 1) * 2;
o->fp.cltbl = m_malloc_maybe(size * sizeof(DWORD), false);
if (o->fp.cltbl != NULL) {
o->fp.cltbl[0] = size;
res = f_lseek(&o->fp, CREATE_LINKMAP);
if (res != FR_OK) {
o->fp.cltbl = NULL;
}
}
}
// for 'a' mode, we must begin at the end of the file
if ((mode & FA_OPEN_ALWAYS) != 0) {

2
lib/oofatfs/ffconf.h
View File

@ -74,7 +74,7 @@
/* This option switches f_mkfs() function. (0:Disable or 1:Enable) */
#define _USE_FASTSEEK 0
#define _USE_FASTSEEK 1
/* This option switches fast seek function. (0:Disable or 1:Enable) */

1
ports/atmel-samd/boards/hallowing_m0_express/board.c
View File

@ -94,6 +94,7 @@ void board_init(void) {
display_init_sequence,
sizeof(display_init_sequence),
&pin_PA00);
common_hal_displayio_display_set_auto_brightness(display, true);
}
bool board_requests_safe_mode(void) {

1
ports/atmel-samd/boards/pyportal/board.c
View File

@ -91,6 +91,7 @@ void board_init(void) {
display_init_sequence,
sizeof(display_init_sequence),
&pin_PB31);
common_hal_displayio_display_set_auto_brightness(display, true);
}
bool board_requests_safe_mode(void) {